Jung on Enlargement of personality:
[215] The personality is seldom, in the beginning, what it will be later on. For this reason the possibility of enlarging it exists, at least during the first half of life.
The enlargement may be effected through an accretion from without, by new vital contents finding their way into the personality from outside and being assimilated. In this way a considerable increase of personality may be experienced. We therefore tend to assume that this increase comes only from without, thus justifying the prejudice that one becomes a personality by stuffing into oneself as much as possible from outside. But the more assiduously we follow this recipe, and the more stubbornly we believe that all increase has to come from without, the greater becomes our inner poverty.
Therefore, if some great idea takes hold of us from outside, we must understand that it takes hold of us only because something in us responds to it and goes out to meet it. Richness of mind consists in mental receptivity, not in the accumulation of possessions. What comes to us from outside, and, for that matter, everything that rises up from within, can only be made our own if we are capable of an inner amplitude equal to that of the incoming content.
Real increase of personality means consciousness of an enlargement that flows from inner sources. Without psychic depth we can never be adequately related to the magnitude of our object. It has therefore been said quite truly that a man grows with the greatness of his task. But he must have within himself the capacity to grow; otherwise even the most difficult task is of no benefit to him. More likely he will be shattered by it.
[216] A classic example of enlargement is Nietzsche’s encounter with Zarathustra, which made of the critic and aphorist a tragic poet and prophet. Another example is St. Paul, who, on his way to Damascus, was suddenly confronted by Christ. True though it may be that this Christ of St. Paul’s would hardly have been possible without the historical Jesus, the apparition of Christ came to St. Paul not from the historical Jesus but from the depths of his own unconscious.
[217] When a summit of life is reached, when the bud unfolds and from the lesser the greater emerges, then, as Nietzsche says, “One becomes Two,” and the greater figure, which one always was but which remained invisible, appears to the lesser personality with the force of a revelation.
He who is truly and hopelessly little will always drag the revelation of the greater down to the level of his littleness, and will never understand that the day of judgment for his littleness has dawned. But the man who is inwardly great will know that the long expected friend of his soul, the immortal one, has now really come, “to lead captivity captive”; that is, to seize hold of him by whom this immortal had always been confined and held prisoner, and to make his life flow into that greater life—a moment of deadliest peril! Nietzsche’s prophetic vision of the Tightrope Walker reveals the awful danger that lies in having a “tightrope-walking” attitude towards an event to which St. Paul gave the most exalted name he could find.
Naturally the transformation of personality in this enlarging sense does not occur only in the form of such highly significant experiences. There is no lack of more trivial instances, a list of which could easily be compiled from the clinical history of neurotic patients. Indeed, any case where the recognition of a greater personality seems to burst an iron ring round the heart must be included in this category.
— Carl Jung, Archetypes and the Collective Unconscious, CW vol.9, Ch.2 The Psychology of Rebirth
