On the contrary. The more stable and integrated your life and psyche are, the greater the chances of having a good experience. Psychedelics often bring a lot

On the contrary. The more stable and integrated your life and psyche are, the greater the chances of having a good experience. Psychedelics often bring a lot of subconscious, repressed content to consciousness, and it is mentally stable, healthy, and integrated individuals who are in the best position to deal with that content. I would strongly caution unstable individuals, or people who are experiencing or being treated for mental illness to stay far away from psychedelics (unless you're using them under the supervision of an experienced therapist -- and even then, that's very controversial).