It's not just about trust in the therapist. Music plays a huge role. In fact, I've recently heard a psychedelic researcher say that he now thinks of psychedelic therapy as a form of music therapy done with psychedelics.

It's also important to be in a safe, comfortable place, without people you don't intimately trust around, at a time when you can just focus on yourself on the day of the experience and ideally at least a day or two afterwards.