The psyche, encompassing the full spectrum of human consciousness—both conscious and unconscious—has long served as a central focus of psychological and philosophical exploration. From Plato’s eternal soul to Freud’s tripartite id, ego, and superego, and Jung’s differentiation between personal and collective unconscious, the idea has developed over centuries of intellectual thought.
Writers such as Molière and Louis Couperus examined it through myth and metaphor, portraying Psyche’s struggles and transformations. Archibald B. D. Alexander described it as the “living self,” connecting biology with spirituality. These viewpoints highlight the psyche as both a scientific concept and an enduring emblem of human complexity.