On: The function of regret    

Regret weighs you down Dear One.  It holds you back, keeps you still, roots you to a moment in the past, prevents you from moving forward.

And by contrast, forgiveness frees you.  It releases you, it sets you free, and allows you to create, to move ahead, to experience something new.

If what you want is to remain still Dear One,  then by all means, keep holding on to your regrets.

But if what you want is freedom, is to move forward, you are going to have to choose to forgive, and let them go.