Hysterology is a figure by which the ordinary course of thought is inverted in expression, and the last put first.
Before and after are apparently irrevocable principles in the structure of time. But sometimes, hysterology consists in the inversion of the traditional order of the ideas and the facts, combing the disorder of spirit of that which speaks. The most famous "hysterologic verse" in poetry belongs to Virgile: “Moriamur and in media arma ruamus.” Let's die and precipitate in the middle of the weapons...."
Metabole's conception of time entails a drastic revision of the idea of the irrevocability of the past. The past is both irrevocable and revocable. There is no sense in the idea of an independent or real past, for the past is always formulated in the light of the emerging present. It is necessary to continually reformulate the past from the point of view of the newly emergent situation.