LSD, and several other drugs including marijuana, also stimulate brain centers. LSD is an agonist at many serotonin and dopaminergic receptors. Remember when you were smoking pot in college and had that amazing conversation that was so meaningful? Yeah, it probably wasn’t.
The acid test.
The world is the world, but it is our perception of it that is the real acid test.
Despite its (first being synthesized in 1938, we still are not entirely clear on) its mechanism of action.