The Five Aggregates demonstrate how the self is constructed from impermanent components, central to the Majjhima Nikaya's teaching on non-self.
The Five Aggregates, or skandhas in Sanskrit (khandha in Pali), are the five categories that Buddhism teaches make up all conditioned phenomena, particularly human experience. They are form (rupa), sensation or feeling (vedana), perception (sanna), mental formations or volitional factors (sankhara), and consciousness (vinnana). Together, they account for everything that can be experienced or known through the senses and mind. The Majjhima Nikaya frequently uses these aggregates as a framework for analyzing experience and understanding the nature of suffering.
In the Majjhima Nikaya, the Five Aggregates serve as the primary vehicle for teaching anatta, the doctrine of non-self. The Buddha uses them to show that what we call "self" is actually a collection of constantly changing processes, not a permanent, unchanging essence. In the Anattalakkhana Sutta (MN 22), the Buddha explicitly teaches that each aggregate is impermanent (anicca), subject to suffering (dukkha), and therefore not-self (anatta). This teaching directly undermines the common misconception that there is a permanent "I" or "me" at the core of our being.
The Majjhima Nikaya returns to this analysis repeatedly because it forms the foundation for understanding why clinging to the aggregates causes suffering. If people understood viscerally that all five aggregates are impermanent and not theirs to control, the root of attachment would wither.
The Majjhima Nikaya presents the aggregates not merely as abstract philosophical categories but as objects of direct investigation. In texts like the Satipatthana Sutta (MN 10), the Buddha teaches mindfulness of the aggregates as a fundamental meditation practice. A practitioner systematically observes each aggregate as it arises, noticing its impermanent nature moment by moment. This direct experience of the aggregates' instability undercuts intellectual attachment and generates insight into non-self.
The aggregates also serve a diagnostic function in the Majjhima Nikaya. The Buddha teaches that identifying which aggregate one is attached to helps diagnose the specific flavour of one's delusion. Someone may cling primarily to form, another to sensation, another to consciousness. This differentiation allows for more precise spiritual work.
The Majjhima Nikaya uses the aggregates to map the entire path to enlightenment. Understanding the aggregates correctly is the beginning of practice; fully comprehending their nature through direct experience leads to stream-entry, the first stage of awakening. In texts addressing advanced practitioners, the Buddha teaches the complete abandonment of craving related to each aggregate as the way to reach progressively deeper stages of enlightenment, culminating in arahatship where all craving and attachment to the aggregates ceases permanently.
The aggregates also appear in the Majjhima Nikaya's analysis of dependent origination (patticcasamuppada), where they are shown to arise and persist through conditioned processes, not through any independent self-nature. This connects the teaching on aggregates to the broader soteriological framework of the collection.
The Majjhima Nikaya, preserved in the Pali Canon, represents the Theravada presentation of the aggregates. Mahayana Buddhism, particularly in Sanskrit texts, uses the equivalent term skandha but sometimes develops the teaching differently, particularly in schools like Yogacara which provide more detailed phenomenological analyses. However, the fundamental teaching that the aggregates comprise all conditioned experience and that grasping them as self causes suffering remains consistent across Buddhist traditions. The Majjhima Nikaya's approach emphasizes simplicity and direct applicability, making it the most accessible source for understanding this foundational doctrine.