The enormous significance of the therapist or sitter during the LSD sessions has its consequences for psychotherapeutic practice. On the one hand, the role frequently presents serious problems for the therapist
Grof argues that the therapist/sitter constitutes a central element of the setting whose relational qualities shape the entire phenomenological and therapeutic trajectory of the session.
, LSD Psychotherapy: Exploring the Frontiers of the Hidden Mind, 1980thesis