The past is powerful.
And because it is powerful, you let it power over you. Forget about the present and future and just dwell on the past mistakes and nightmares. Drown in the shame, the grief, the fury, the self-loathing . . .
Let the combined strength of the present and the future override the past. Instead of looking back at piles of the blackened coal of what could have been, look toward piles of the stunning diamonds of what will be.
Coal or diamonds?
The choice is essentially up to you.