The question of the most rigorous and best-grounded philosophical basis for psychoanalytical experience is a serious question, not simply because psychoanalysis became the most influential current in psychotherapy during the last century but also because it is the only current trying to offer an interpretation of what happens in the deeper layers of our affective life. This is why philosophers in the phenomenological tradition have had difficulties in their approach to psychodynamics: The psychoanalytic attention to depth entails a more or less speculative approach to interpretation, because of what it sees as the hidden aspects of the psyche.