Psychedelic compounds are substances that alter perception, mood, and consciousness. These compounds include LSD, psilocybin (magic mushrooms), mescaline (peyote), DMT, and ayahuasca. Psychedelics are believed to be capable of producing a deep state of relaxation, introspection, and self-exploration. They are also sometimes used in psychotherapy to treat mental health conditions such as addiction, depression, and anxiety. Psychedelics work by activating serotonin 5-HT2A receptors. Psychedelics increase the permeability of the blood-brain barrier, allowing more molecules to enter the brain. Psychedelics also activate other neurotransmitters such as dopamine and norepinephrine. Psychedelics are thought to produce effects by "resetting" the brain's default mode network. The brains default mode network is responsible for our sense of self, and it's usually active when we're not engaged in any specific task. Psychedelics seem to disrupt this network, causing people to lose their sense of self and experience ego dissolution. Psychedelics can lead to profound spiritual experiences and insights and improve the treatment of mental health issues when used in the proper environment.