Love is both its cause and effect. The lesser coniunctio derives from love as concupiscence, whereas transpersonal love (analogous to Plato's Heavenly Aphrodite) both generates and is generated by the greater coniunctio
Edinger defines the phenomenology of coniunctio through a graduated theory of love, distinguishing a lower, desire-driven union from a transpersonal one that both produces and is produced by the greater conjunction with the Self.
, Anatomy of the Psyche: Alchemical Symbolism in Psychotherapy, 1985thesis