  Premise (1) appears to be based on the assumption that persons undergo rebirth, together with the thought that one function of a self would be to account for diachronic personal identity. By ‘permanent’ is here meant continued existence over at least several lives. This is shown by the fact that the Buddha rules out the body as a self on the grounds that the body exists for just one lifetime. (This also demonstrates that the Buddha did not mean by ‘impermanent’ what some later Buddhist philosophers meant, viz., existing for just a moment; the Buddhist doctrine of momentariness represents a later development.) The mental entities that make up the remaining four types of psychophysical element might seem like more promising candidates, but these are ruled out on the grounds that these all originate in dependence on contact between sense faculty and object, and last no longer than a particular sense-object-contact event. That he listed five kinds of psychophysical element, and not just one, shows that the Buddha embraced a kind of dualism. But this strategy for demonstrating the impermanence of the psychological elements shows that his dualism was not the sort of mind-body dualism familiar from substance ontologies like those of Descartes and of the Nyāya school of orthodox Indian philosophy. Instead of seeing the mind as the persisting bearer of such transient events as occurrences of cognition, feeling and volition, he treats ‘mind’ as a kind of aggregate term for bundles of transient mental events. These events being impermanent, they too fail to account for diachronic personal identity in the way in which a self might be expected to.