Psychedelic drugs are psychoactive substances that alter the way a person experiences reality. They have been used for thousands of years in various cultures around the world as part of spiritual ceremonies and healing rituals. Recent studies have shown that psychedelics can be effective in treating mental health disorders such as depression, addiction, and PTSD.Psychedelic drugs are substances that alter the way a person's brain functions and can cause hallucinations. These drugs can sometimes induce a sense of insight, spiritual experience, and creativity.