Psychedelics like psilocybin may help rewire the brain by promoting the growth of new neurons, akin to shaking a snow globe and allowing it to settle into a new pattern. While studies in rodents show promising results, the exact mechanisms in humans remain unclear, with possibilities ranging from new brain cell growth to changes in emotional processing. Despite concerns about safety, psychedelics are considered some of the safest substances compared to commonly used drugs like alcohol and opioids.