We all live our lives either trying to be act civil. Often we wear this mask of sanity that hides our true feelings. No matter what, we are recommended not to take off this mask. But sometimes it does slip off showing the true side of us. Seeing someone's madness can help to know the person better. The ugly side is as important as the pretty side.
Being in an altered state of consciousness does reveal this truth. But the rules still remain the same..