incubation involved staying within a sacred central region of the temple grounds, the ‘abaton’, often constructed as a labyrinth sunken into the ground (inside the MotherEarth and resembling the underworld). There, the afflicted person slept or tranced to experience healing dreams or visions.
This passage provides the most detailed clinical-historical account of incubation procedure, encompassing ritual preparation, the architecture of the abaton, the healing dream experience, and priestly interpretation of results.
, Sacred Psychiatry in Ancient Greece, 2014thesis