The Teleological Significance Of Dreaming In Aristotle

Abstract

AbstractIn his discussions of dreaming in the Parva Naturalia, Aristotle neither claims nor denies that dreams serve a natural purpose. Modern scholarship generally interprets dreaming as useless and teleologically irrelevant for him. This paper argues that Aristotle's teleology permits certain types of dream to have a natural role in end-directed processes. Dreams are left-overs from waking experience, but they may, like certain bodily residues, be used by nature, which does ‘nothing in vain’ and makes use of available resources, for the benefit of the beings in which they occur. Contrary to prevalent opinions, Aristotle does not assimilate dreams to sensory illusions and does not hold that they have no interaction with our reasoning capacity. Dreams constitute a special class of the products of phantasia, but this does not prevent them from functioning like other (waking) phantasmata. In Aristotle's view, dreams regularly generate 'natural signs' of diseases and cause waking actions. This preparatory power of dreams, often dismissed or attributed to divine intervention in antiquity, is captured within Aristotle’s natural philosophy, and provides evidence that (some) dreams are (or should be) regarded by him as having a teleological significance.