This transmissibility of taboo is a reflection of the tendency, on which we have already remarked, for the unconscious instinct in the neurosis to shift constantly along associative paths on to new objects.
Sigmund FreudThe pleasure of satisfying a savage instinct, undomesticated by the ego, is uncomparably much more intense than the one of satisfying a tamed instinct. The reason is becoming the enemy that prevents us from a lot of possibilities of pleasure.
Sigmund Freud