The original meaning of psychedelic is "mind manifesting", which has nothing to do with serotonin. The term "hallucinogen" is a misnomer, because the effects o

The original meaning of psychedelic is "mind manifesting", which has nothing to do with serotonin. The term "hallucinogen" is a misnomer, because the effects of psychedelic substances (including muscimol, salvia, ketamine, etc..) don't always involve hallucinations. For example, if you forgive yourself or your parents under their influence (not an uncommon effect), that's not a hallucination. If you're able to face some traumatic event in your past while under their effects, and are no longer frightened of this traumatic event, that's not a hallucination. If a suicidal person no longer wants to kill themselves after taking a psychedelic, or a terminally ill person is finally able to achieve peace with the fact that they're going to die, that's not a hallucination. That's not to mention the quite common feeling while under the effect of psychedelics that what one experiences is "more real" than what one experiences under normal, waking consciousness, etc. I don't view the term "psychedelic" as perfect, but it's much better than "hallucinogen".