a) Let him (The Adept) learn to write backwards, with either hand.
b) Let him learn to walk backwards.
c) Let him constantly watch, if convenient, cinematograph films, and listen to phonograph records, reversed, and let him so accustom him self to these that they appear natural and appreciable as whole.
d) Let him practice speaking backwards: thus for "I am He" let him say, "Eh ma I."
e) Let him learn to read backwards. In this it is difficult to avoid cheating one's self, as an expert reader sees a sentence at a glance. Let his disciple read aloud to him backwards, slowly at first, then more quickly.
f) Of his own ingenium, let him devise other methods.
- Aleister Crowley (1875-1947)
Uit: Magick, Liber ABA, Book 4 (1913)