Psychedelic plants are natural substances that can alter perception, mood, and cognitive processes. Common examples include psilocybin mushrooms, peyote cactus, and ayahuasca. These plants contain compounds that interact with the brain's neurotransmitters, leading to experiences often described as mystical or profound. Historically, many cultures have used psychedelic plants in spiritual and healing practices. Research is now exploring their potential therapeutic benefits for conditions like depression, anxiety, and PTSD. However, the legal status and safety of these substances vary widely across different regions and contexts.