Over 70% of those in our study had difficulties, statements made on tape list these difficulties mainly as being: problems with sleeping, anguish, increasing pain in the head, stomach, and back, (compare with section 6 of this chapter), problems with concentration, hallucinations, feelings of isolation, depression, over- sensitivity, and instability. It is significant that the percentage is high in each group. This shows that even the so-called easy meditation (2x20) can lead to serious problems. This is confirmed by comparing the ordinary meditators with sidhas, T.M. teachers, and governors. 70% of ordinary meditators had experienced difficulties as a result of the meditation, 82% of insiders.