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The deluded do not see Him Who departs, stays and enjoys; but they who possess the eye of knowledge behold Him.

Whether it departs or stays, or enjoys while joined to the qualities, the deluded do not see it; those with the eye of knowledge see it.

The self is present in every phase of life: when it leaves the body, while it stays, and while it enjoys experience through the qualities (guṇa). Yet the deluded do not see it, because their attention is entirely absorbed in the objects. Those who have the eye of knowledge (jñāna) do see it. Krishna is not describing a rare vision but a shift of seeing. The same events can be watched with or without awareness of the one who lives through them.