Psilocybin enhances the flow of information in the brain by activating serotonin two A receptors, leading to a broader and less hierarchical activation of brain circuitry. This results in a unique blending of sensory experiences, where sounds can influence visual perceptions and vice versa, even in the absence of external stimuli. The interplay between sensory information and emotional states becomes more fluid, allowing for a rich tapestry of experiences that defies typical processing patterns.