If 15.14 was about the fire in the belly, this shloka goes to the very center of being. Krishna declares: I am seated in the heart of every creature. From me comes memory. From me comes knowledge. And from me comes forgetting as well.
Even forgetting is his gift. An elder once said: what needs to go, let it go. The ability to release an old memory that blocks the way forward — that too is a grace. Memory, knowledge, and the capacity to let go: all three flow from the divine presence within the heart.
And what do all the Vedas ultimately seek? Him. Who composed the Vedanta? He did. Who truly knows the Vedas? He alone. This shloka draws a full circle: the one seated in the heart is the same one the Vedas search for, the same one who authored them, and the only one who fully understands them.