Psyche or psychology, etc.
The Greek word for the soul was psyche. The myth of Cupid and Psyche can be interpreted as the soul's longing for an eventual reunification with the divine through love. For Freud psyche means mind and psychic refers to mental activity; many English derivatives describe the study of the mind and the healing of its disorders: psychology, psychiatry, etc. In psychoanalytic terms, the soul is the mind, the seat of thoughts and feelings, our true self, which seeks to orient our lives to our surroundings.