Auto-anima

Auto-anima is energy a person generates by preying on themselves. Where predation usually describes drawing anima out of another, auto-anima turns that inward: the animus feeds on its own store, through asceticism, drugs or other attacks on the self, producing a charge of energy at the cost of self-depletion. It is the reflexive case of the extraction Marsh's model tracks between people, the predator and prey collapsed into one person. This links it directly to asceticism, since self-depletion by one's own will is exactly the mechanism, and to the endoself, the self cut off from primary anima that turns to substitutes and self-attack to feel animated at all.

The specific term is Marsh's, with no established use outside her framework. Its nearest cousins are ordinary observations that people can get a charge from self-denial, risk or substances, and clinical accounts of self-harm and addiction. Marsh gives these a single mechanism in her energy model: anima produced by attacking one's own animus, tied to asceticism and the endoself.