Since things neither exist nor do not exist, are neither real nor unreal, are utterly beyond adopting and rejecting - one might as well burst out laughing.
LongchenpaSince everything is but an apparition, having nothing to do with good or bad, acceptance or rejection, one may well burst out in laughter.
LongchenpaIn the experience of yogins who do not perceive things dualistically, the fact that things manifest without truly existing is so amazing they burst into laughter
Longchenpa