Psychedelic cacti, such as Psychoactive Cacti like Psyllocybe and San Pedro, contain compounds that can induce altered states of consciousness. The most well-known psychoactive compound found in these cacti is mescaline, which can produce visual and auditory hallucinations, as well as changes in perception and mood. These cacti have been used for centuries in traditional rituals by indigenous cultures in the Americas. They are often consumed in various forms, including fresh, dried, or as a brewed tea, and are sought after for their spiritual and therapeutic effects.