Metapsychology is a branch of psychology that deals with the theoretical and metaphysical aspects of the field. It involves exploring topics such as the human psyche, consciousness, and the nature of the mind. Synonyms for metapsychology include transpersonal psychology, spiritual psychology, and depth psychology. Transpersonal psychology focuses on the spiritual and mystical aspects of human experience and aims to promote personal growth and spiritual development. Spiritual psychology emphasizes the spiritual and emotional aspects of human experience. Depth psychology focuses on the unconscious mind and explores the deeper layers of human consciousness. These synonyms all share a focus on the inner world of the individual and seek to understand the complexities of human experience.