The dagger as object and as responsibility — the thing Lara took that she cannot simply put back, cannot hand off, cannot wish she had not touched. Didn't choose me is the honesty about agency: the dagger has no preferences. Lara made a choice and the choice had consequences and the consequences require resolution. Not letting go is the only form of accountability available once the taking has been done.

The downpour is both weather and metaphor — the flood that the dagger set in motion, the rain that continues to fall, the consequence of the action persisting past the moment of the action. Lara moving through it is the game's image of what atoning looks like when the thing being atoned for is still actively happening.