Terence McKenna's True Hallucinations is an experimental documentary about the chaos at La Chorrera, the imagination, time, the Logos, belief, hope, madness, and doubt. Created by Peter Bergmann, this project is an expansion of ideas first presented in "The Transcendental Object At The End Of Time".

In 1971, Terence McKenna, along with his brother Dennis and three other companions, ventured by plane, boat, and foot to the paradisical Colombian mission town of La Chorrera, where they hoped to encounter the elusive psychedelic oo-koo-hé. Fate would have it otherwise. Their attention soon turned to the large numbers of Stropharia Cubensis that they lucked upon, and before long, Terence and especially Dennis were formulating the psychopharmacological "experiment at La Chorrera" which would eventually give rise to Terence's expanded Jungian notion of the UFO as human oversoul, and his I Ching based TimeWave Theory which holds, among other things, that history as we know it is accelerating and, in fact, will come to a major concrescence.