In so far as one denies what is, one is possessed by what is not, the compulsions, the fantasies, the terrors that flock to fill the void.
The individual, by means of the discipline imposed on him by sport, not only plays and finds relaxation from the various compulsions to which he is subjected, but without knowing it trains himself for new compulsions. ... Training in sports makes of the individual an efficient piece of apparatus which is henceforth unacquainted with anything but the harsh joys of exploiting his body and winning.jacques ellul
...using hypnosis, scientists have temporarily created hallucinations, compulsions, certain types of memory loss, false memories, and delusions in the laboratory so that these phenomena can be studied in a controlled environment.[ "The Truth and the Hype of Hypnosis". Scientific American: July 2001