Krishna details the inevitable movement of aversive states: The impulse to eschew the unpleasant leads to avoidance; avoidance leads to aversion; aversion leads to fear; fear leads to hatred; hatred leads to aggression. Unwittingly, the oh-so-natural instinct to avoid the unpleasant becomes the root of hatred. It leads to war: war within, war without. Entertaining aversion is a slippery slope.