I’m sure you must know of Kykeon, the psychoactive beverage that ancient Greeks drank as part of the initiation into the Eleusinian Mysteries. Psychedelic mushr

I’m sure you must know of Kykeon, the psychoactive beverage that ancient Greeks drank as part of the initiation into the Eleusinian Mysteries. Psychedelic mushrooms are one of the theorized ingredients, but as you say there is no hard evidence of that. However, residue of ergot fungus sclerotia has been found in Kykeon vessels. Another strong candidate is datura (Jimsonweed), based on it’s regional availability and description of the effects of Kykeon.