Phenomenological psychology invites us not just to an awareness of another perspective with a previously unrecognized body of knowledge, but to a radically different way of being-in-the-world. In addition, this different way of being leads naturally to a different mode or practice of inquiry—the methods of phenomenological research. This chapter will compare phenomenological psychology to the more mainstream behavioral and psychoanalytic approaches (Valle, 1989), present the essence of the existential-phenomenological perspective (Valle, King, & Halling, 1989), discuss the distinctions between the existential and transpersonal world-views, and then describe the nature of an emerging transpersonal-phenomenological psychology (Valle, 1995).