Dharmatā Never Left

"Does future buddhahood retroactively empower the present bodhisattva?" — this question presupposes a framework: buddhahood sits in the future and needs to "travel back."

But the Dharmakāya transcends the three times. At the Dharmakāya level, the buddhas of past, present, and future are without distinction.

So: there is no "future buddhahood" that needs to "come back." Dharmatā is not in the past, present, or future. It has always been all-pervading. It never left.

"The empowerment of all buddhas" wasn't transmitted from "over there." It has always been right here.

The answer isn't retrocausality. It's: dharmatā never left — you can't receive it because adventitious afflictions blocked the opening.