Yagnavalkya continued: 'Now when that Self, having sunk into weakness, sinks, as it were, into unconsciousness, then gather those senses (pranas) around him, and he, taking with him those elements of light, descends into the heart When that person in the eye turns away, then he ceases to know any forms.

In plain words: Yajnavalkya goes on. When a dying person grows weak and seems to lose consciousness, the senses gather around the Self. Taking their light with it, the Self goes down into the heart, and the eyes no longer see shapes.