Although hypnosis remains an unknown force that operates in an unknown way within an immense unknown space called 'human psyche', there is no doubt about its countless practical applications - from alleviating pain and controlling certain bad habits, to bringing forth images and memories from the distant past or even from other lives.

Moreover, it may even grant powers or qualities that we didn't even imagine we possessed, helping us to travel to unknown times and places. In short, hypnosis is another Key that unlocks the Gates of the Unknown.

Hypnosis, the author writes, is something that is as simple in practice as it is complex in theory. But, who really cares about the theory when one can try doing something in practice - and indeed in a simple way?

[Excerpt from the text on the back cover of the edition]