Commentary on the Metaphysics

Quick Facts

• Title: Commentary on the Metaphysics
• Author: Mulla Sadra
• Date: 17th century; the exact composition date is uncertain
• Tradition: Islamic philosophy, especially the Avicennian and post-Avicennian commentary tradition
• Main topic: what it means for anything to exist at all
• Central claim: existence is more basic than essence, substance, or category
• Closest companion work: Transcendent Wisdom in the Four Journeys
• Related but different: Thomas Aquinas's Latin commentary on Aristotle's Metaphysics

The Problem

Metaphysics asks about beings simply as beings. Physics studies things as movable. Mathematics studies things as measurable. Metaphysics asks the wider question: what makes anything real in the first place?

The older Aristotelian answer begins with substance. A substance is a thing that exists in its own right, such as a horse, a tree, or a person. Its color, size, and place depend on it. In Islamic philosophy, Ibn Sina sharpened the problem by distinguishing essence from existence. Essence means what a thing is. Existence means that it is real.

Sadra's problem is this: when metaphysics explains reality, should it treat fixed essences and substances as the deepest things, or should it treat existence itself as deeper? If God is the first cause, does God merely start a chain of things, or is God the independent source from which every dependent act of existence comes?

In One Minute

Commentary on the Metaphysics shows Sadra working inside the scholastic commentary tradition. A commentary is not just a summary. It is a close reading of an authoritative text where the commentator explains, corrects, extends, and sometimes transforms the inherited argument.

Sadra uses the Aristotelian and Avicennian vocabulary of metaphysics: being, substance, cause, act, potency, essence, and God as first principle. But he pushes it toward his own doctrine of the primacy of existence. Existence, or wujud, is the act by which anything is real. Essence, or "whatness," is how the mind identifies and classifies that reality.

The result is not a neutral school note. Sadra turns metaphysics away from fixed substances and toward graded existence. Things are real by receiving existence. Causes give existence. God is not one being among others, but necessary existence itself.

The Main Argument

Sadra begins from the classical idea that metaphysics studies being as being. "Being as being" means things considered simply as real, not as moving bodies, numbered objects, or living organisms. Aristotle made substance central to that science. A substance is the main bearer of reality: this horse, this person, this tree. Sadra accepts that vocabulary, but he thinks a substance is not just a stable thing carrying properties. It is an act of existence.

Ibn Sina gives Sadra the decisive tool: essence and existence can be separated in thought. The essence of a triangle is "three-sided plane figure." That definition does not tell you whether any triangle is drawn on this page. Sadra argues that existence, not essence, does the real work.

That changes the meaning of cause. A cause is not merely a trigger that rearranges ready-made essences. A real cause gives existence. A builder does not make the abstract essence "house"; the builder brings wood, stone, labor, and plan into an actual house. At the deepest level, finite causes depend on God because finite things do not contain the reason for their own existence.

Sadra's God is therefore not just Aristotle's first mover imagined as the first push in a cosmic machine. In Avicennian language, God is the Necessary Being: the one whose existence is not received from another. In Sadra's language, God is pure, independent existence. Every other thing is contingent, which means it exists only by receiving existence.

This also makes reality graded and dynamic. Existence is one reality, but it appears in stronger and weaker modes: stone, plant, animal, human soul, intellect, and God. Act means realized being. Potency means the capacity to become more determinate. Sadra radicalizes this into substantial motion: material things change in their very substance, not only in color, size, or place.

So the main argument of Sadra's reading is simple but far-reaching: metaphysics becomes clear only when existence is treated as primary. Substance, essence, cause, motion, and even the proof of God must be read through that point.

Key Ideas With Examples

• Commentary: a school method of reading an authoritative text closely. The commentator explains the text, answers objections, compares earlier interpreters, and often adds a new argument.

• Being qua being: "qua" means "as." Being qua being means things considered as real. A doctor asks why a person is feverish. The metaphysician asks what it means for the person to exist at all.

• Essence: what a thing is. The essence of a knife is roughly a tool for cutting. You can understand that definition even if no knife is in the room.

• Existence: the act of being real. A knife in your hand has existence in a way that the definition of a knife does not.

• Substance: a thing that exists in its own right rather than as a feature of another thing. A person is a substance. The person's height is not a substance, because it exists only as the height of that person.

• Act and potency: act is what has been realized; potency is what can be realized. Flour, water, and heat are potentially bread. The baked loaf is that potential in act.

• Cause: an explanation of why something is real or why it is the way it is. Aristotle's causes include matter, form, source of change, and purpose. Sadra treats the deepest cause as the giver of existence.

• Necessary Being: God as the one whose existence does not depend on anything else. A tree depends on soil, water, sunlight, and causes before it. God is not dependent in that way.

• Gradation of existence: existence comes in degrees. A sleeping person, an awake person, and a person actively thinking all exist, but the last case shows a fuller exercise of human powers.

• Substantial motion: change in what a thing is, not just in its surface features. A child becoming an adult is not only a change of size. The living substance itself develops.

Why It Matters

The work matters because it shows how later Islamic philosophy handled Aristotle without merely repeating Aristotle. Sadra reads old metaphysical questions through Ibn Sina, Suhrawardi, Sufi metaphysics, and Shi'i theology.

It also helps explain why Sadra became so important in later Iranian and Shi'i philosophy. His system gives a single framework for being, causality, the soul, God, and resurrection: finite things are dependent acts of existence moving through different degrees of reality.

For readers of Aristotle, the page shows a different afterlife of Aristotelian metaphysics. In Catholic Scholasticism, thinkers such as Aquinas used Aristotle for a Christian metaphysics of act, potency, creation, and God. Sadra belongs to another scholastic world, but he is asking a similar question.

Proponents, Critics, and Opponents

Sadra's main allies are the thinkers he transforms. From Aristotle, he inherits substance, cause, act, potency, and first philosophy. From Ibn Sina, he inherits essence and existence, necessary and contingent being, and the shape of the Islamic metaphysics curriculum. From Suhrawardi and Ibn Arabi, he takes graded reality, presence-knowledge, and a stronger sense of being as divine disclosure.

His critics came from more than one direction. Some Avicennian philosophers resisted his move from essence-centered metaphysics to existence-centered metaphysics. Some theologians worried that Greek philosophy and mystical interpretation could bend scripture away from its plain meaning.

al-Ghazali was not Sadra's direct opponent, but his attack on the philosophers shaped the problems Sadra had to answer: creation, God's knowledge, resurrection, and the limits of reason. Averroes represents another Aristotelian path, one more focused on defending Aristotle against Avicennian and theological revisions. Thomas Aquinas represents the Latin scholastic path. Sadra belongs to the Islamic path, where Aristotle is read through Ibn Sina and then remade through Transcendent Theosophy.

Related Pages

• Mulla Sadra
• Aristotle
• Ibn Sina
• Suhrawardi
• Ibn Arabi
• al-Ghazali
• Thomas Aquinas
• Transcendent Wisdom in the Four Journeys
• Islamic Falsafa
• Later Islamic Philosophy
• Catholic Scholasticism