by cardigan » July 8th, 2008, 3:49 am
The reason for visualisations being so difficult is, that they are associated with very deep levels of trance. Harry Arons once created a scale describing trance depths. He divides it into 6 stages, where 1 is the lightest and 6 the deepest. And creating positive halucinations is at level 5 (somnambulism), while creating negative halucinations is at level 6 (profound somnambulism). It can be extremely difficult to achieve these levels of trance. Some have a knack for doing it - others don't. Some can be taken there by a trained hypnotist and then have posthypnotic suggestions installed to take them equally deep on later occasions, and others might never get that deep. It might help to consult a hypntist IRL and get one on one help that way.