Hallucinogenic medicine could cause hallucinations, which might be sensations and images that appear actual but aren’t. Persons may well hear, truly feel or see things that aren’t actually there. Some psychedelic medications cause people to feel out of control or disconnected from their bodies and environment. The Denver Psilocybin Initiative https://medium.com/@LsdWorld/introduction-to-lsd-what-you-need-to-know-e70ffecb3a92