Like Goethe’s Faust, Nietzsche’s ideation of Zarathustra is a seminal work in its expression of the archetypal Self (the Greater Personality) in communication and relationship with the relatively frail human Ego (the Lesser Personality).
It must be understood that the “Ego” is concepted as the center of ones consciousness identity, whereas the more powerful “Self” archetype of eternal Being resides in the recesses of the directly unknowable Objective Unconscious (aka the Collective Unconscious), along with the other evolutionarily selected human instincts and the various volitionally beneficial behavioral images (archetypes)
The Self is as an ocean upon which the Ego finds itself bobbing around, but it can be influenced, and in fact guided by the Self, particularly when the Ego finds itself in circumstances from which it cannot escape and for which tradition offers no salve or balm.
Either alone, or summoned by the pain and lamentations inflicted upon the Ego by the denied Shadow, the eternal Self, like the Soul guides us for better or worse towards the light or towards the dark of what is and what we ourselves truly are.
Like the “God Image”, that Nietzsche so artfully reveals to us is dead, the strivings of man, in God’s place, inserted his own image (science) in its place, thus inflating and directing the Collective Ego towards the material and the temporal., and away from the transcendent and the eternal. The Image of the Self is our inner link with the divine, the eternal and the unknowable from which we all came and are all a part.
Like heavenly light focused through a tiny opening in the cosmos, our Ego blesses us with the ability to channel an eternal brilliance that our lesser personality could never wield, never contain and never direct.
The Self then is the image, the guide, the channeling point through which the divine intends its inexhaustible energies onto our psyche, onto us. The Self recognizes itself in what the Ego considers both good and evil, as the Ego is very much conditioned and influenced by the world in which it was created and is surrounded by. The Self is not of this age, but it is of this world and of the eternal at the same time. It is the point of ignition for recognizing the paradoxical, the opposite and the dichotomous.