God in Spinoza’s Thought

(With a Comparison to the Views of Muslim Mystics and Philosophers)

Written Speech by Dr. Reza Gholami at the House of Iranian Wisdom, Vienna – February 20, 2025

I am delighted to present another one of my written philosophical lectures to enthusiasts. This lecture, titled “God in Spinoza’s Thought,” has been prepared in commemoration of the anniversary of the passing of this great philosopher on February 21.

The human understanding of God has long been one of the most fundamental philosophical and spiritual questions, shaping civilizations and schools of thought. The question of what God is and how His relationship with the world and humanity can be defined has always been a central concern for great philosophers. Among them, Baruch Spinoza, one of the most influential philosophers of the Enlightenment, presents a unique and revolutionary view of God. The significance of examining Spinoza’s perspective lies in the fact that he challenged traditional religious and philosophical boundaries, offering a concept of God that profoundly influenced not only Western philosophy but also the modern human understanding of existence.

In this lecture, I will briefly explore Spinoza’s view of God, His connection to nature and the universe, and then compare it—briefly—to the perspectives of Muslim mystics and philosophers.

Spinoza’s Concept of God in Three Key Principles

1. God as the One Substance

Spinoza defines God as the “one substance” that is causa sui (the cause of itself). He argues that God and nature are the same (“God or Nature” – Deus sive Natura). In his view, God is an infinite being that possesses all possible attributes and characteristics.

2. God Is Impersonal

Unlike traditional religious views, Spinoza’s God is not personal and does not have an independent will or human-like emotions. God does not create laws but is the very essence of those laws. This perspective is closely related to the concept of pantheism.

3. God’s Presence in the World

God is intrinsically present in everything. Everything that exists in the world is an expression or manifestation of one of God’s infinite attributes. Therefore, God is present in everything but also beyond everything.

The Difference Between God and Nature in Spinoza’s Philosophy

The distinction between God and nature in Spinoza’s thought is a complex and debated topic. It relates to how he understands God (Deus) and Nature (Natura). While these two concepts are fundamentally identical in his philosophy, there are subtle differences in how he explains their unity:

1. The Unity of God and Nature: Deus sive Natura

Spinoza’s famous phrase “Deus sive Natura” (God or Nature) signifies that God and nature are one and the same. However, he does not refer to nature in a purely material or physical sense, but rather as the totality of existence. This relationship has two key aspects:

1. God as the First Cause (Natura Naturans)

This refers to active and creative nature. God is the ultimate cause that brings everything into existence and governs all.

1. Nature as the Effect (Natura Naturata)

This refers to created nature, meaning the collection of all beings and phenomena in the universe. Everything that exists is a manifestation of God as the first cause.

2. The Difference in Perception: God as Essence vs. Nature as Manifestation

Spinoza believes that God is absolute essence—a substance that necessarily exists and cannot cease to exist. In contrast, nature represents the manifestations of this essence through its attributes and modes (Modes). This distinction includes two fundamental points:

1. God (or substance) is infinite, eternal, and unchangeable.
2. Nature (as manifestation) consists of things that are finite, changing, and dependent on God.

Spinoza’s view offers a radical redefinition of God, shifting from a personal deity to an all-encompassing reality, fundamentally changing the way we understand the divine and its relationship with the world.

3. God Beyond Empirical Nature

Although Spinoza identifies God with nature, he emphasizes that God is not limited to the physical and material world. God possesses infinite attributes (such as thought and extension), whereas humans can only experience two of them: thought and extension.

4. God as the Inner Cause of the World

In Spinoza’s philosophy, God is not an external being who created the world and then remained separate from it. Instead, God is the inner cause of the world. This contrasts with traditional theism, which views God as a separate entity from nature.

In summary, Spinoza equates God with nature but understands God as the absolute substance and the inner cause of all things, beyond the finite world and its phenomena. In Spinoza’s view, God is both Natura Naturans (creative nature) and Natura Naturata (created nature), yet He always remains an infinite substance that encompasses all reality.

The Difference Between Spinoza’s Concept of Substance and Its Classical Meaning

Some may assume that Spinoza’s concept of God refers to the substance of the universe. However, in Spinoza’s philosophy, God is substance, but not in a purely mental or conceptual sense. Substance, in Spinoza’s system, is a metaphysical and fundamental reality that transcends both mind and matter. It is the foundation of everything. Therefore, in Spinoza’s thought, God is neither purely mental nor merely material.

1. God as Substance (Substantia)
2. Spinoza sees God as an infinite and independent substance.
3. Substance is something that does not depend on anything else for its existence. Thus, God is the only true substance from which everything else originates.
4. This substance contains all possible and infinite attributes (such as thought and extension), but these attributes are not separate from substance—they are expressions of its essence.
5. God and Mentality

God is not merely a mental or abstract concept.

Although one of God’s attributes is thought, this does not mean that God is like the human mind or a purely mental entity.

In Spinoza’s philosophy, thought is an infinite attribute that includes all possible mental states.

In other words, the human mind is just a finite mode of God’s attribute of thought—but God is not limited to human consciousness or mental existence.

3. God and Matter

At the same time, God is not merely material.

The attribute of extension explains the material or physical aspect of God, but it is only one of God’s infinite attributes.

In other words, the physical world is an expression of God as extension, but God is not confined to the physical world.

4. Substance Beyond Mind and Matter

In Spinoza’s view, substance is neither purely mental nor purely material.

It is an infinite reality from which both thought and extension emerge as two of its attributes.

God is both the inner cause of all things and the foundation of the world’s existence.

Both mind and matter originate from God, but God transcends both.

As a conclusion, In Spinoza’s philosophy, God is neither a mental being nor a purely material entity.

Instead, God is an infinite substance that possesses countless attributes, including thought and extension.

Mind and matter (and everything we can imagine) are modes of this substance and depend on it, but God is not limited by them.

Thus, Spinoza’s concept of God goes beyond the traditional division between mental and material existence.

Ambiguities and Contradictions in Spinoza’s Conception of God

Spinoza’s view of God and nature, due to its complex and metaphysical nature, may initially seem ambiguous or even paradoxical. This ambiguity arises from his attempt to present a conception of God that does not align with traditional theism or atheism but rather leads to a completely different perspective, known as pantheism (or monism). However, when analyzed within the framework of his philosophy, it appears that Spinoza resolves these contradictions to some extent. Let’s examine the possible ambiguities and contradictions in more detail:

1. Ambiguity in the Unity of God and Nature

Spinoza states that God is identical to nature (Deus sive Natura), yet he divides nature into two aspects:

1. Natura Naturans (Creative Nature): God as the active cause and creator.
2. Natura Naturata (Created Nature): The world as the manifestations and phenomena of God.

At first glance, this division may seem dualistic or contradictory because it suggests that one being (God) is both the creator and the created. However, Spinoza clarifies that this duality exists only in our way of perceiving God, not in His essence. God is a single, unified substance from which all modes emerge, yet He Himself remains unchanged.

2. The Apparent Contradiction Between God’s Infinity and the Finiteness of Creatures

In Spinoza’s philosophy, God is infinite and encompasses everything. However, the world, as God’s manifestation, appears finite and limited. This seems paradoxical because if God is infinite, how can His manifestations be finite?

Spinoza resolves this by explaining that God is infinite in His essence, but creatures (modes) are merely finite expressions of His attributes. In other words, the limitation of creatures is due to our perception of them, not a limitation in God’s nature.

3. Ambiguity in God’s Attributes (Thought and Extension)

Spinoza asserts that God possesses infinite attributes, but humans can only comprehend two: thought (mind) and extension (matter). This raises the question: Why can we perceive only these two attributes, and why do the others remain unknowable?

Spinoza’s answer is that the limitation comes from us, not from God. We can only grasp the aspects of God that are accessible to human nature. The other attributes exist, but they are beyond human experience and understanding.

4. Is Spinoza’s View Ambiguous and Impractical?

Some critics argue that Spinoza’s philosophy is not particularly useful for religious practice or even for understanding the world because:

First, he describes God as infinite and impersonal, distancing himself from a God that interacts with humans.

Second, his idea of God being identical to nature may undermine traditional religion and reduce the perceived need for God.

However, Spinoza believes that his perspective is not ambiguous but rather liberates us from religious superstitions and excessive scientism. He aims to offer a conception of God that aligns with both rationality and spiritual intuition.

In summary, Spinoza’s view of God and nature, although seemingly ambiguous and contradictory at first, is built upon a precise and coherent philosophical system. Most of the ambiguities stem from the difference between Spinoza’s philosophical language and the traditional expectations of religious concepts. He attempts to bridge the gap between theism and atheism, presenting a new perspective. Though his view may be challenging, it has been an inspiration to many philosophers and thinkers.

Various Criticisms of Spinoza’s Concept of God

Beyond the ambiguities and contradictions previously discussed, Spinoza’s conception of God—often interpreted as pantheism or monism—has been the subject of extensive criticism from philosophers, theologians, and thinkers from the 17th century to the present. These critiques primarily focus on the metaphysical, ethical, religious, and epistemological implications of his philosophy. Below are some of the most significant criticisms raised against Spinoza’s view:

1. Ambiguity in the Definition of God

Critics such as Leibniz argue that Spinoza’s definition of God is excessively vague and abstract.

Spinoza defines God as an infinite substance that includes all attributes and modes.

However, some critics contend that this definition reduces God to a mere philosophical or metaphysical concept, stripping away the traditional notion of a personal, conscious, and willful deity.

Leibniz famously asks: If God and nature are the same, why call it “God” at all? He argues that Spinoza essentially reduces God to nature, making divine existence indistinguishable from the material world.

2. Denial of God’s Will and Personality

One of the major criticisms is that Spinoza’s God lacks will, purpose, or personality.

Thinkers such as David Hume and religious philosophers argue that Spinoza’s conception of God does not inspire worship or spirituality.

Instead of an interactive, caring deity, Spinoza’s God is an impersonal, deterministic force that automatically generates everything.

This view directly contradicts the God of the Abrahamic religions, who possesses will, consciousness, and the ability to act in history.

3. Determinism and the Rejection of Free Will

Spinoza’s philosophy is metaphysically deterministic: everything in the universe follows from God’s attributes and modes with absolute necessity.

Kant and others criticize this view, arguing that such determinism negates human freedom.

If human actions are simply expressions of nature’s laws, then moral responsibility and free will become meaningless.

This deterministic framework challenges the traditional ethical concept of personal accountability.

4. Conflict with Traditional Religion

By defining God as an infinite substance identical with nature (Deus sive Natura), Spinoza departs from traditional religious beliefs.

Christian and Jewish theologians argue that his view is incompatible with the transcendent, personal God of the Abrahamic faiths, who creates but remains distinct from the world.

Many have accused Spinoza of being a covert atheist because his God does not intervene, command, or communicate with humanity.

His view undermines the foundation of prophecy, divine revelation, and sacred texts, suggesting they are merely human constructs rather than messages from a divine being.

5. The Neglect of the Transcendent

Philosophers such as Schiller and Kierkegaard argue that Spinoza’s philosophy eliminates God’s transcendence.

By equating God with nature, Spinoza reduces God to an infinite system of natural laws.

This removes the possibility of a personal or mystical experience of God, which is essential to many religious traditions.

6. Contradictions in the Concept of Substance

Spinoza claims that God is the only true substance, yet the finite world consists of multiple modes.

Hume and Leibniz argue that this contradicts Spinoza’s own definition of substance.

If substance is by definition self-existent and independent, how can modes (which depend on God) exist without violating this principle?

7. The Problem of Evil

Spinoza asserts that evil is merely a lack or absence of perfection, rather than something real.

Critics such as Hume and Voltaire reject this explanation, arguing that it fails to address the real presence of suffering, evil, and injustice in the world.

If God and nature are one, and God is perfect, why does nature contain suffering and imperfection?

8. Ethical Implications

Some philosophers argue that Spinoza’s view of God leads to moral relativism.

If everything is a mode of God, and God is perfect, then how can we condemn evil or moral wrongdoing?

This perspective might undermine moral responsibility and weaken ethical frameworks.

As a result, despite its depth and complexity, Spinoza’s concept of God has posed serious challenges for many philosophers. The main criticisms focus on:

1. Reducing God to nature (undermining divine transcendence).
2. Denying divine will and personality (eliminating a relational God).
3. Promoting determinism (which threatens human freedom).
4. Conflicting with traditional religious beliefs (removing prophecy, revelation, and divine authority).

However, Spinoza’s ideas have had a profound impact on modern philosophy, continuing to inspire discussions in metaphysics, theology, and ethics. His vision of God as an immanent, all-encompassing reality remains influential, even as it faces persistent critique.

Can we find a connection between Spinoza’s concept of God and the views of Muslim mystics?

Spinoza’s view of the unity of existence shares similarities with the perspectives of Muslim mystics (like Ibn Arabi), but there are important and fundamental differences between them. To clarify the topic, let’s examine the similarities and differences between these two views:

Main similarities:

1. Emphasis on the Unity of Being:

   Both Spinoza and Muslim mystics emphasize the general unity of being. In Spinoza’s view, God and nature are one “single substance” from which everything originates. Muslim mystics believe that all beings are manifestations of God, and existence is nothing but the appearance of the divine essence.

2. Rejection of Duality Between Creator and Created:

   Neither Spinoza nor Muslim mystics see an absolute duality between the creator and the created, or God and the world. Spinoza believes that God is the same as nature, and everything returns to Him. Muslim mystics consider the world as a “manifestation” or “appearance” of God.

3. Presence of God in Everything:

   In both views, God is present and observing in all aspects of existence. In Islamic mysticism, this idea is expressed through terms like “absolute existence” or “unity of witnessing.”

Main differences:

1. Spinoza’s View: God and Nature are One (Pantheism):

   Spinoza defines God as the “substance” and considers the world (nature) as the “manifestation” of attributes or states of that substance. In essence, God and nature are two sides of the same coin.

   However, Islamic mysticism emphasizes both “similarity” (tashbih) and “transcendence” (tanzih); God is present in everything (tashbih), yet He is beyond all creation and incomprehensible (tanzih). This means in Islamic mysticism, God and the world are not one, but the world is a manifestation of the divine essence.

2. Personality of God:

   Spinoza sees God as impersonal and without will; God in Spinoza’s system acts as a neutral causal principle without any specific purpose or goal for creation.

   But Muslim mystics view God as conscious, with will, and active. In Islamic mysticism, God is not only the creator but also continuously oversees and intervenes in the world.

3. Purpose of Existence:

   Spinoza believes that nature and the world lack a specific purpose. He adheres to the “determinism” of the existential system, where human behavior and nature follow unchangeable laws.

   Islamic mysticism sees the world as purposeful and meaningful; everything in the world is created according to divine wisdom, with the ultimate goal of returning to God.

4. Metaphysics and Epistemology:

   In Spinoza’s system, God and nature are knowable through reason. Spinoza heavily relies on rationalism, believing that through scientific and philosophical understanding, one can comprehend the “states” of God.

   However, Islamic mysticism emphasizes “heart’s intuition” and mystical experience. God in Islamic mysticism is understood not only through reason but also through the heart and spiritual revelation.

5. Human Relationship with God:

   In Spinoza’s view, humans are part of nature and subject to its laws; thus, the relationship between humans and God is impersonal and mechanistic.

   In Islamic mysticism, humans are “God’s vicegerents” on earth and have a loving, emotional, and personal relationship with God, expressed through concepts like “divine love” and “divine proximity.”

As a result,, although Spinoza’s view of the unity of being has similarities with Islamic mysticism (like the emphasis on the unity of existence and God’s presence in everything), there are fundamental differences in the concept of God, the purpose of the world, and the nature of the human relationship with God. Spinoza’s view is closer to philosophical pantheism, whereas Muslim mystics have shaped their views based on revealed teachings and mystical experiences, where God is personal, active, and purposeful.

Connection between Spinoza’s Concept of God and Islamic Philosophy’s God

In Islamic philosophy, God is considered as “existence as such” (existence in its absolute and independent form), which might seem similar to Spinoza’s view at first glance, but there are fundamental and significant differences between these two perspectives that prevent them from being considered the same.

Main Similarities:

1. Emphasis on Unity:

   Both Islamic philosophy and Spinoza emphasize that God or the substance (in Spinoza’s view) is a single reality to which everything ultimately returns.

   In Islamic philosophy, “existence” is the foundation of everything, with God being pure and absolute existence.

   Spinoza also sees God as a single substance from which everything originates and exists within.

2. Fundamental Reality:

   In Islamic philosophy, God is the fundamental reality and the origin of existence, to which everything is dependent.

   Spinoza also considers God as the fundamental substance, with all beings being manifestations of it.

Fundamental Differences:

1. Definition of God:

   In Islamic philosophy, God is beyond the created world and transcendent over it. God is existence as such, but the world and beings are only limited manifestations of His absolute existence. God is not only the cause of creation but also beyond it.

   However, Spinoza sees God as entirely immanent and identical with nature (Substance). In Spinoza’s view, God is not transcendent or beyond the world but is the nature and its laws.

2. Relationship Between God and the World:

   In Islamic philosophy, God is the creator of the world, but the world is independent of God’s essence; in other words, God and His creations are not “one,” but have a creator-creation relationship.

   In Spinoza’s view, God and nature are one (Pantheism). He does not distinguish between God and the world, considering God as one with the entire natural system.

3. Knowledge of God:

   In Islamic philosophy, God can be known through reason, revelation, and mystical intuition. Also, God is personal, conscious, and has a relationship with humans.

   But Spinoza views God as impersonal. In his perspective, God lacks personal consciousness or will, and cannot be known as a transcendent, conscious being intervening in worldly affairs.

4. Cause and Effect:

   In Islamic philosophy, God is the existential cause of everything, but this causality does not imply change or affectation in Him. God is active and independent, while creations are dependent on Him.

   On the other hand, Spinoza believes in an internal, necessary causality; everything in the world necessarily emanates from the divine substance (nature), without discussing traditional cause and effect relationships in this context.

5. Movement and Purpose:

   In Islamic philosophy, the world has a purpose and an end; everything moves towards God.

   In Spinoza’s view, the world lacks any specific purpose or end. Everything exists as it is by necessity and has no purpose beyond itself.

In summary, although both Spinoza and Islamic philosophers emphasize the oneness of the reality of existence, there are deep differences in the concept of God between these two views.

In Islamic philosophy, God is the absolute, transcendent, conscious creator from whom the world and beings originate but are separate.

In Spinoza’s view, God is the same as nature, impersonal, and without independent consciousness or will.

Thus, Spinoza’s concept of God as substance fundamentally differs from the Islamic philosophical view of “existence as such.”

Concluding Remarks:

It seems that Spinoza managed to offer a fresh idea about God which, despite the serious criticisms it has received, continues to provoke deep reflection among philosophers and researchers in philosophy. Some of the great natural scientists have also reacted positively to Spinoza’s ideas about God. What is certain is that the understanding of existence has infinite depth and will forever reveal itself as a mystery.

Einstein, in his book Einstein and the Poet (1983), states:

“Let us accept that the world is a mystery. Nature is neither merely material nor entirely spiritual. Man is more than flesh and blood; otherwise, no religion would be possible. Behind every cause there is yet another cause; the end or beginning of all causes has not yet been discovered. Behind every cause there is yet another cause; the end or beginning of all causes has not yet been discovered. Nevertheless, only one thing must be remembered: nothing happens without a cause, and there is no lawlessness in creation.”

In the meantime, what is important is the openness of philosophers to different opinions and criticisms, and their unwavering commitment to the pursuit of a deeper understanding of existence.

Thank you for your attention.