Knowledge they say is power, but knowledge isn't power until it is applied. And I will ask this question "have you ever sawed sawdust?" I guess the answer is "No", of course you can't saw sawdust, but it's already sawed, it's the same with the past. When you start worrying about things that are over and done with, you're merely trying to saw sawdust.
Do you still live in a tailspin of worry?
Do you still allow your mind to be completely corrupt by your past mistakes?
Do you still stew and fret about the mistake of the past? Wishing you had done them differently, thinking about the things you had said and wishing you had said them better? All the fussing and hair pulling in the world won't bring back a drop of it.
To be sure, we may do something to modify the effects of what happened in the past, but we can't possibly change the event that occurred in the past. There is only one way that the past can be constructive, and that is by calmly analysing our past mistakes and profiting by them and forgetting them.
You can't grind any grain with water that has already gone down the creek, but you can saw wrinkles in your face and ulcer in your stomach. Stop worrying about the past and concentrate on plans for the future.
Be wise!
Nice post