History is the senex shadow of the puer, giving him substance. Through our individual histories, puer merges with senex, the eternal comes back into time, the falcon returns to the falconer's arm. The dynamus of one combines with the order of the other. The bipolar spirit becomes ambivalent, logically incoherent but symbolically cohesive, as we see in the paradoxes of mysticism. There will be a curious intermingling of time and eternity, as in nature. Temporal continuity, that causal chain of history, the basis of order and the basis of ego, is broken up or broken through by the eternal. The world of Saturn is pierced through with Mercurius; the silver-quick flow coagulated into solid moments: quantum jumps, spontaneous events, forgetting and foolishness, uselessness in the world of power yet full knowledge, unpredictable - "discontinuity," as Erich Neumann called it. [53] Yet this is not chaos nor random destruction. Rather these ordered happenings within limits are vividly meaningful, happenings having their own meaning, a sense or non-sense that is not dependent upon before or after from which it may be discrete, discontinuous, or only in the same "topological space." So the sense is given wholly by the experience itself as a gift of soul. And one feels through such experiences that there is meaning, that one is in meaning, that one is personally, individually meant. Let us call it meaningful discontinuity or the order of chance governed by fate, or call it living from the principle which Jung circumscribed as synchronicity. Another hint comes from the paradoxes of knowing and not-knowing, the archetypal mystery, which is behind the phenomenon of dialogue. For dialogue does not rest only on the people who are involved, nor does their involvement rest on some existential para-concept. Dialogue, the union-forming effect of dialectic, the press within us to enter into dialectic to find knowledge and to discover meaning, is already embedded within the archetype of senex-puer relationship - that question "why" and that answer "I know." For meaning is as much in the questioning as in the knowing, or as Jung put it in his autobiography: The meaning of my existence is that life has addressed a question to me. Or, conversely, I myself am a question which is addressed to the world, and I must communicate my answer ... I also think of the possibility that through the achievement of an individual a question enters the world, to which he must provide some kind of answer. [54] In answering one's own question one is puer-et-senex. In questioning one's own answer one is senex-et-puer. The two faces turned towards each other in dialogue.
— James Hillman
Hillman is describing what it feels like when a life becomes legible to itself — not as a narrative threading cause to effect, but as a series of moments that carry their meaning complete, the way a dream does. The causal chain holds the ego together; synchronicity breaks through it not to destroy order but to reveal a different kind, one native to the soul rather than to history. Saturn's world is not abolished when Mercurius runs through it. It is pierced — and what comes through in that piercing is the sense of being individually, personally meant. Not saved. Not healed. Meant.
The puer-senex axis gives this a shape. Pure ascent — the puer running from history into eternal possibility — leaves the spirit volatile, without weight. Pure descent into the senex buries the eternal in institution and repetition. What Hillman is tracing here is the moment of their commerce: where the eternal comes back into time not as escape but as event. Jung's formulation from the autobiography lands differently read this way. The question life addresses to you is not answered once and transcended. It is answered, and then questioned again from the other face — senex-et-puer, the knowing that opens back into not-knowing. Dialogue does not resolve; it deepens the incoherence until the incoherence itself becomes the form meaning takes.
James Hillman·Senex and Puer: An Aspect of the Historical and Psychological Present·1967