Psychosynthesis is therefore one of the earliest forerunners of both humanistic psychology and transpersonal psychology, even preceding Jung's break with Freud by several years. Assagioli's conception has an affinity with existential-humanistic psychology and other approaches which attempt to understand the nature of the healthy personality, personal responsibility and choice, and the actualization of the personal self; similarly, his conception is related to the field of transpersonal psychology, with its focus on higher states of consciousness, spirituality, and human experiencing beyond the individual self. Accordingly, Assagioli served on the board of editors for both the "Journal of Humanistic Psychology" and the "Journal of Transpersonal Psychology".