Why: Krishna answers, I am time, the destroyer of worlds, here to annihilate these people, even without you, all these warriors arrayed in opposing armies will cease to exist, delivering the vision's actual, central meaning in a single, direct sentence after all the buildup.

In life: sometimes, after a long, overwhelming buildup of experience or explanation, the actual core meaning turns out to be surprisingly simple and direct once it's finally stated plainly.

Teaching: after working through a long, complex experience or explanation, look for the surprisingly simple, direct statement of its actual core meaning, that simplicity, once you find it, is usually the real point underneath all the earlier complexity.