Ancient Greek Dream Interpretation

Dream interpretation, or oneiromancy, was a serious and established practice in ancient Greece - not a fringe belief, but a tradition running through religion, medicine, and philosophy alike.

Dreams in Greek Literature and Religion

Dreams appear as significant plot devices in Homer’s epics, with both the Iliad and the Odyssey featuring dreams understood to be sent by the gods, carrying real narrative and religious weight rather than being incidental detail. This reflects a broader cultural assumption that at least some dreams were divinely significant.

Healing Dreams at the Temples of Asclepius

One of the best-documented ancient Greek dream practices is incubation (Greek: enkoimesis) at healing sanctuaries dedicated to Asclepius, the god of medicine. Sick people would travel to these sanctuaries - the sanctuary at Epidaurus among the most famous - and sleep within the temple grounds in the hope of receiving a healing dream, sometimes interpreted as a direct visitation or diagnosis from the god himself. This was a genuine, widely practised element of ancient Greek medical culture, not merely folklore.

A More Sceptical Strand

Alongside this popular and religious tradition, Greek philosophy also produced a more sceptical account. Aristotle addressed dreams directly in a short treatise, On Dreams (De Insomniis), taking a notably rationalist position: he argued that dreams arise from residual sensory activity carried over from waking perception, rather than from divine sending. This places Aristotle among the earliest writers to propose what would now be recognised as a naturalistic, physiological account of dreaming - centuries before modern sleep science.

The Systematic Tradition

This mixture of religious, literary, and philosophical interest in dreams eventually produced the most complete surviving guide to ancient dream interpretation, written several centuries later. See Artemidorus and the Oneirocritica.