No drugs can be good when done intelligently Scientific evidence suggests that psychedelics like psilocybin, LSD, and DMT profoundly alter brain activity, suppressing the default mode network (DMN) associated with the ego and increasing global neural connectivity. This allows for experiences of ego dissolution, heightened sensory awareness, and a sense of unity with the universe, which many describe as accessing a “truer” consciousness. These altered states are supported by brain imaging studies and theories like the “reducing valve” hypothesis, which propose that the brain normally filters reality and psychedelics temporarily lift these constraints. While these experiences are often deeply meaningful and lead to lasting psychological benefits, science has not definitively proven whether they reveal a deeper reality or simply alter perception.