This lightning is the honey of all beings, and all beings are the honey of this lightning. Likewise this bright, immortal person in this lightning, and that bright, immortal person existing as light in the body (both are madhu). He indeed is the same as that Self, that Immortal, that Brahman, that All.

In plain words: Lightning and all beings nourish each other like honey. The shining, deathless presence in lightning is the same one that lives in us as our inner light. Both are the one Self, Brahman, the whole of reality.