Further reading
- Evans-Wentz (ed.) The Tibetan Book of the Dead, Oxford University Press, 1960
- P. Harpur, Daimonic Reality: Understanding Otherworld Encounters, Penguin-Arkana, 1995
- S. Miller. After Death: How People Around the World Map the Journey After Life. Touchstone, 1997
- Kenneth Ring. Heading Toward Omega. William Morrow, 1984
- Sogyal Rinpoche. The Tibetan Book of Living and Dying. HarperCollins, 1992
- Roger Woolger. Other Lives, Other Selves, HarperCollins, 1989
- C. Zaltski. Otherworld Journeys: Accounts of Near Death Experience in Medieval and Modern Times. Oxford University Press, 1987