There is an old statement, drawn from the Peripatetic tradition, that sums up Aristotle’s entire epistemology: nothing reaches the mind without first passing through the senses. For the Stagirite, man is not born with ready‑made ideas, as in Plato’s philosophy, but with a power — the sensitive soul — through which the world enters him, form by form, image by image.
In Book Three of On the Soul, Aristotle examines the five senses not as isolated organs, but as gates through which the soul receives the sensible form of things, without their matter. The eye does not take in the colored wood itself, only its color; the ear does not receive the vibration of the air, but the intelligible form of sound. For his time, this was a bold idea: sensation is not a contamination of the soul by the body, but an ordered receptivity, an openness to the world.
Sight is, for Aristotle, the noblest sense: it offers the greatest number of distinctions and allows knowledge from a distance, without touch. Hearing follows closely, because through it speech is transmitted, and speech is the vehicle of teaching — an animal born deaf, Aristotle observes, remains mute as well, for it has no way to learn the sounds of language. Smell is weaker in man than in animals, a weakness Aristotle attributes to the moisture of the human brain. Taste is a form of touch, perceiving sweet and bitter through direct contact. And touch is the foundation of all the senses: without it, no animal life could exist, for through touch a being guards the boundary between itself and the world, feeling the warmth that nourishes and the cold that kills.
The Common Sense — The Threshold Between Body and Mind
Above the five senses, Aristotle places the common sense (koine aisthesis) — not a sixth sense, but the soul’s power to unify perceptions: the same reality is sweet, yellow, and round, and the common sense gathers these into a single perception of the thing.
Yet the common sense is more than coordination. It is the place where perception becomes unity, where the soul begins to approach nous, the mind capable of receiving intelligible forms. Koine aisthesis is the threshold between body and mind, between sensation and thought.
In patristic reading, this threshold becomes the place where natural perception can open toward spiritual perception.
The common sense gathers natural perceptions; the purified mind gathers reality in light.
Man as a Being Open to the World
At the end of Aristotle’s inquiry, man appears as a being open to the world through the body, a being who knows because he receives — not because he remembers (as in Plato), nor because he invents. It is a sober anthropology, grounded in observation. And precisely for this reason, a few centuries later, Christian thinkers would receive it with interest, seeking a precise language to speak about man. But the Fathers did not stop at the bodily senses: they discovered, or rather received through grace, a deeper order of senses, hidden beneath the five, which only purity of heart can open.
A Patristic Perspective on the Five Senses
Aristotle saw in the senses the gates through which the world enters man. The Holy Fathers do not contradict this observation — they deepen it. Yes, through eye, ear, smell, taste, and touch, man comes to know God’s creation. But the Fathers ask a question pagan philosophy could never ask: what happens to the senses of a man whose passions have darkened them? And further: can the senses be purified, enlightened, even transfigured?
The Holy Apostle Paul sets the tone: “Eye hath not seen, nor ear heard, neither have entered into the heart of man, the things which God hath prepared for them that love Him” (1 Corinthians 2:9). Beyond everything the five senses can gather, there exists a reality they cannot reach by themselves. Not because they are evil, but because they are limited — created for the fallen world, not for uncreated glory.
Here the teaching on the spiritual senses is born. Origen sketches it first; Saint Diadochos of Photiki and Saint Symeon the New Theologian bring it to fullness: the soul purified of passions gains an inner perception of God, parallel to the bodily senses yet of a different nature — a “taste” of grace (“O taste and see that the Lord is good,” Psalm 34:8), a “sight” of uncreated light, a “hearing” of God’s voice in the heart.
Liturgical Experience — Where the Senses Are Transfigured
The spiritual senses do not arise in a vacuum. They are kindled in the place where grace works visibly: in the liturgy.
• Natural sight sees the candle; spiritual sight perceives the light of Christ.
• Natural hearing hears the chant; spiritual hearing receives God’s call.
• Natural smell senses incense; spiritual smell recognizes “the sweet savor of Christ.”
• Natural taste receives bread and wine; spiritual taste receives Body and Blood.
• Natural touch feels the icon; spiritual touch senses presence.
The liturgy is the place where the five senses are invited to be transfigured. Not abolished, but raised. Not closed, but opened toward another reality. Here the difference between Aristotle and the Fathers becomes clear: for the Stagirite, the senses are gates of the world; for the Fathers, the senses become gates of the Kingdom.
The Difference in Ontology — Form and Grace
Here lies the decisive break between Aristotle and the Fathers.
• In Aristotle, the senses receive the sensible form of things.
• In the Fathers, the enlightened senses receive the uncreated energy of God.
This is not a difference of intensity, but of nature. Natural senses perceive the created world; spiritual senses perceive the uncreated working of God.
Guarding the Senses — The Inner Battleground
The Fathers do not idealize the senses. They know their power — and their danger.
The senses are entrances.
Through them light enters, but through them darkness can enter as well.
• The eye can become the gate of lust.
• The ear can become the gate of rumor and disturbance.
• Smell can become the gate of pleasure.
• Taste can become the gate of gluttony.
• Touch can become the gate of passion.
This is why the Philokalia speaks of guarding the senses — not as a moral rule, but as an ontological struggle.
The senses are not neutral: they take the color of the heart.
A troubled heart troubles the senses; a pure heart enlightens them.
The senses are not transfigured through technique, but through the healing of the heart.
The Shadow and Ascent of Each Sense
• The eye can look with desire — or behold the light of Christ, as at the Transfiguration.
• The ear can be enslaved to rumor — or hear the voice of God: “He that hath ears to hear, let him hear.”
• Taste can become gluttony — or learn measure through fasting, becoming an organ of discernment.
• Smell, the weakest sense in man according to Aristotle, becomes for the Fathers a sign of grace: “the fragrance of Christ,” and the sweet fragrance of the saints’ relics.
• Touch, the foundation of natural life, becomes for Saint Thomas the touch that leads to confession: “My Lord and my God.”
The Senses as Windows to Eternity
Aristotle saw in man a being who knows the world through the senses.
The Fathers saw in man a being who can know God through the heart.
Together, these two perspectives form a complete portrait: man is a being open to the world through the body and open to God through the spirit; a being who receives the forms of things, but also the light of grace; a being called to pass from natural perception to spiritual sight.
The senses are not obstacles, but steps — the first five steps of a ladder rising from the created world toward uncreated glory.
And at the summit of this ascent, the Apostle’s word becomes lived truth:
“I live; yet not I, but Christ liveth in me.”
Then the senses are no longer merely of the body, but become windows to eternity, through which man sees not only the world, but God working within the world.
