 The psyche, then, is characterized by an “incessant occurring (Geschehen)” and “incessant effecting” (Wirken; 1922: 27[29]). Indeed, Stein puts forth the “general law of causality”, according to which “all psychic occurrences are caused (kausal bedingt)” (1922: 29[32]). Causality plays an ontologically constitutive role. There is “no psychic reality without causality” (ibid.); everything that enters the psychic domain “owes its existence” and is regulated by life-power, and life-power alone (1922: 27[29]).