The experience and meaning of grief differs with the progression of self-awareness of the experiencer in his ontogenetic evolution from utter dependence to differentiated integration. Autonomy, achieved by very few adults, carries with it the connotation of transcendence over mere obedience and conformity to the canons of society. This is different from deviance in two important respects. Deviance is a movement in a horizontal direction away from cultural dominance, and therefore could manifest itself in antisocial activities. Autonomy, being a movement in a vertical direction, is supra-cultural and non-conformist rather than antisocial. All this has a great deal to do with existential grief, the experience of which can change according to the level of ontology of the experiencer. The following operational definitions are needed to treat the subject of ontological grief in a meaningful manner.