How could I forget to mention Jorge Luis Borges? If you want to alter your perceptual realities, he's should be near the top of the list.
Kevin
Till now you seriously considered yourself to be the body and to have a
form. That is the primal ignorance which is the root cause of all trouble.
- Ramana Maharshi (1879-1950)
Sound and Vision:
http://www.minds-eye.org