Jung’s Red Book is the primary research record of his systematic experiments in active imagination after the break with Freud, combining calligraphic German text and paintings that document dialogues with autonomous imaginal figures—especially Philemon and Salome—which became source material for core constructs: Psyche’s autonomy, the collective unconscious, the transcendent function, and individuation as disciplined task. It warrants close reading to examine the evidentiary basis of Jung’s later theory, to observe the operational steps of active imagination in situ, and to track the midlife reorientation from ego assertion to symbolic practice.

Jung’s discoveries are woven into our common understanding. Introvert/extravert, shadow work, typology, persona, and synchronicity pop up in casual conversations all the time. Negotiating with our inner figures, now used by Internal Family Systems, was pioneered by him. Although we have adopted his ideas, few know how they were forged from his personal struggles. Today, we honor Jung’s 150th birthday by sharing stories from his life and how they shaped his groundbreaking insights.