Human Nature: Aggregates, Emptiness and Buddha-nature

Understanding a person as a changing process

Buddhist teachings about human nature challenge the idea that beneath our changing bodies, thoughts and feelings there must be a permanent self. Anatta means that there is no permanent, independent self or soul. This does not mean that people do not exist: it means that a person is not an unchanging essence separate from the processes that make up their life.

The Five Khandas, or aggregates, describe these physical and mental processes. Khandha is the Pali word; skandha is the Sanskrit equivalent. An aggregate is a group or collection of factors, rather than a single permanent part of a person.

The five aggregates working together

Both Theravada and Mahayana Buddhists teach the aggregates. They distinguish different aspects of experience, but these aspects interact rather than functioning as five separate selves.

This example separates the aggregates so that their meanings are clear; it is not a fixed sequence through which every experience must pass. Several aspects operate together. Consciousness is not a hidden soul controlling the other four: it is itself one of the changing aggregates.

What the Khandha Sutta teaches

In the Khandha Sutta, SN 22.48, the Buddha addresses monks at Savatthi. He announces that he will teach both the five aggregates and the five clinging-aggregates.

He names form, feeling, perception, mental fabrications and consciousness. Mental fabrications is another translation of mental formations. Each category includes whatever belongs to it, whether it is “past, future, or present”, internal or external, near or far. The teaching therefore covers much more than a person's immediate feelings or current body.

The second part identifies the clinging-aggregates: those same categories insofar as they are available to be clung to and sustain attachment. These are not five additional parts of a person. The distinction concerns the relationship between experience and clinging.

For example, enjoying a pleasant feeling is different from insisting that it must last or treating it as essential to who you are. The distinction matters because Buddhist practice aims to overcome attachment, not simply to stop having bodily and mental experiences.

Why the aggregates matter in different traditions

In Theravada Buddhism, analysing a person through the aggregates helps explain anatta. Bodies, feelings, perceptions and intentions change; none provides a permanent self. Observing these changes in meditation can weaken the tendency to grasp at them as “me” or “mine”. This supports the pursuit of enlightenment and nibbana, liberation from suffering.

Mahayana Buddhism also uses the aggregates to understand experience. In the Tibetan Buddhist explanation presented by Alexander Berzin, they are factors making up each moment of experience, rather than simply five ingredients in a personality. Ordinary experience is affected by confusion, but its capacities can be developed and freed from these limitations.

These emphases are compatible rather than mutually exclusive. One draws attention to letting go of identification with changing experience; the other also draws attention to the possibility of transforming how experience functions. Neither makes consciousness into a permanent soul.

Sunnata: empty of independent existence

Sunnata, also written sunyata, means emptiness. The crucial question is: empty of what? It means empty of a separate, independent essence, not empty in the sense of being completely nonexistent.

The analysis of a person through the aggregates challenges the idea of an independent self. Mahayana teachings place particular emphasis on extending this understanding to all phenomena, including the aggregates themselves. Things depend on parts, causes and conditions; they do not exist entirely through their own power.

A laptop makes this easier to picture. It depends on components such as a keyboard, storage and circuitry, and those components must work together. There is no separate “laptop essence” apart from these dependencies. Nevertheless, the laptop can function. Similarly, emptiness does not deny ordinary existence or practical consequences.

The importance is ethical as well as philosophical. Recognising dependence can encourage compassion and reduce self-centred attachment. It becomes harder to treat oneself as completely separate from others.

A Tibetan Buddhist emphasis is that emptiness also helps us respond accurately to change. Someone you meet today is not a permanently fixed person who must be in yesterday's mood, but neither are they a completely unrelated person with no history. Understanding this can make relationships more flexible and considerate.

Tathagatagarbha: the possibility of awakening

Tathagatagarbha, or Buddha-nature, is especially associated with Mahayana Buddhism. It teaches that beings have the potential for Buddhahood: full awakening. Ignorance and attachments can obscure that potential, but they need not define someone permanently.

One explanation describes Buddha-nature as already present but hidden. A traditional analogy compares it to honey surrounded by bees. The honey represents Buddha-nature; the bees represent obstacles that prevent it from being experienced. Removing the obstacles reveals what was there already.

Another emphasis, found in Berzin's Tibetan Buddhist explanation, is on capacities that must be developed. Beings already possess basic ways of experiencing and responding to the world. Through practice, these capacities develop and their limitations are removed. This highlights cultivation as well as uncovering.

Both explanations give reasons for perseverance. Meditation, generosity and learning are worthwhile because ignorance is not an unavoidable, permanent identity. Belief in the potential of others can also encourage respect and compassion.

Connecting the three teachings

The aggregates explain the changing processes of human experience. Emptiness explains why neither a person nor those processes possesses an independent essence. Buddha-nature emphasises the possibility of awakening rather than remaining trapped in ignorance.

Buddha-nature should therefore not simply be understood as a permanent personal soul hidden inside the aggregates. The potential-and-development interpretation makes the connection particularly clear: awakening is possible without requiring an unchanging self. The traditions differ in their language and emphasis, but these teachings all help Buddhists question attachment and understand the possibility of freedom from suffering.