Soul — psyche in Greek — is life force. Soul is the connection to the Universe. Soul is housed in the body. It includes all biological functions designated as the parts of Self, a composite of genetic predispositions interacting with environmental and cultural experiences. As a collective of all individual aspects that make up a person, Soul is attached to this Earth. As a life force, it exhibits all material qualities as well as that little extra, that specialness, that je ne sais quoi that makes it a life force. Soul is the gestalt of our being and therefore greater than the sum of its parts. Soul is the essence of our totality, the essence of our being.

Addressing Soul in this theoretical manner postulates an acceptance of the principles of phenomenology, metaphysics, and the conceptual framework of transpersonal psychology. Genetic in origin, Soul begins to develop at conception; each individual develops a unique form following the directions of its protein building blocks.