Damcho Pamo, a British woman, experienced psychosis and mania, when she was 51, while attending an intensive meditation retreat. Prior to this chapter in her life she had no history of psychological problems and in fact was psychologically robust.
In 1997 I became involved with a Zen group. I adopted a daily meditation practice and attended three retreats a year, two weekends and one five day. The retreats were intensive as they were in silence, the only opportunity to talk was in individual interviews with the teacher, and there were around eight hours of meditation a day.