Odin's journey in search of knowledge after the creation of the world represents the desire for spiritual advancement after the birth of the soul, as in the creation of the Norse world. Odin's sacrifice of his left eye to drink from the sacred water represents his dedication to meditation for spiritual advancement, beginning with the third eye. The water represents the nourishment and satisfaction of the soul through the spiritual energy that accumulates within it, making it powerful and capable of opening the power centers/chakras and the positive qualities of the soul by renouncing negative things. This is also represented by the Gebo rune, which can be used in power meditation to eliminate and renounce negative things that hinder spiritual advancement in exchange for the gifts that this renunciation brings. Gipt stands for gift.
The flaming eye is the third eye, whose primary power is an increase in wisdom and spiritual knowledge until reaching gnosis and knowing everything at the stage of the soul's divinity. The true third eye seeks to discern truth, wisdom, and understanding of the forces of nature through a balance between logical filtering and intuition, which ideally cooperate.
The light of the eye is a sign that this center of power has been activated and awakened, and it increases in brightness, visible to those with open astral vision. This corresponds to the cognitive luminosity of the mind and the light of the traveling hero who advances on his very personal psychic and spiritual journey toward the perfection of divinity. With spiritual advancement, the soul acquires greater luminosity the closer it approaches higher levels toward the pinnacle of the Magnum Opus.
The Nordics knew perfectly well that without a purified, opened, and empowered third eye, one remains blind and enslaved in a general sense, where consciousness remains trapped in its negative lower octave.
Odin's act of tearing out his left eye (the left feminine side governed by the right side of the brain, which governs intuition and the psyche) is symbolic not only of the sense of sacrifice for spiritual advancement but also of a form of high spiritual courage in those who wish to advance and see the truth and secrets of nature, regardless of their brutality. A very strong mind is required to see the truth and discover the secrets of nature in mental harmony with natural laws, and to distinguish lies and darkness from the light of truth.
Odin is another name for Satan, the lord of the third eye, the eye that allows one to see the truth through the siddhis of knowledge, wisdom, and higher spiritual intuition.