Existential psychotherapy is a form of dynamic psychotherapy… the existential approach… posits that there are forces in conflict within the individual, and that thought, emotion, and behavior… are the resultant of these conflicting forces.
Yalom establishes existential psychotherapy’s foundational claim: it is a dynamic depth psychology in which ultimate existential concerns — not drives — constitute the conflicting forces shaping psychic life.
, Existential Psychotherapy, 1980thesis