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Neither doth the sun illumine there nor the moon, nor the fire; having gone thither they return not; that is My supreme abode.

Neither the sun nor the moon nor fire illumines it. Having gone there, none return; that is my supreme abode.

Krishna describes his supreme abode by saying what does not light it. Sun, moon and fire, the great sources of light in ordinary life and in Vedic worship, have no role there, because it shines by its own nature. The phrase about no return repeats the promise made earlier in the chapter. Readers have understood this abode as a transcendent realm, as the light of pure awareness, or as both. In the dialogue it gives Arjuna a sense of the goal toward which detachment points.