I often meet with clients who regret their past. Some wish desperately to go back and change it. I show them how we can alter our perceptions of the past in present time — the future of our past — and actually change the past! (And of course, changing the past creates a different future!)
Here's a study using the principle of 'quantum entanglement' to explain this phenomenon:
"Essentially, the scientists showed that future actions may influence past events, at least when it comes to the messy, mind-bending world of quantum physics."