1. Anonymous report (June 20, 2000) Impossible to Understand Reality. Posted at Erowid Experience Vaults: LSD. http://www.erowid.org/experiences/exp.php?ID=1979 . Accessed 2 Feb 2010
2. Anonymous report (Sep 28, 2001) Comprehending my immediate field of vision. Posted at Erowid Experience Vaults: LSD. http://www.erowid.org/experiences/exp.php?ID=9696 . Accessed 2 Feb 2010
3. Anonymous report (March 27, 2006) Hubris Nightmare. Posted at Erowid Experience Vaults: Mushrooms. http://www.erowid.org/experiences/exp.php?ID=24258 . Accessed 2 Feb 2010
4. Baudelaire CH (1926) Prose and poetry. A and Ch Boni, New York, p 257
5. Bergson H (1913) Creative evolution. Henry Holt, New York, p 306