Such subjects also assume various fetal postures and move in sequences that bear a similarity to those of a child during the stages of biological delivery. In addition, they frequently report visions of or identification with fetuses and newborn children.
Grof documents that subjects in perinatal LSD states spontaneously adopt fetal postures alongside birth-sequence movements, treating these physical configurations as somatic derivatives of biological birth experience.
, LSD Psychotherapy: Exploring the Frontiers of the Hidden Mind, 1980thesis