Regret?

We can regret the things we did, true. But, the most bitter of regrets are of the things we didn't do. For opportunities don't repeat themselves often, and nothing stings more than feeling the loss of what could have been.

Use regret to prompt reflection, and release it immediately. Let it be a tool for self understanding and positive change. To refocus and take corrective action.

For future actions, beautify them with good intentions. It keeps the heart light and the soul pure. For intention is truly the only thing we have control over.