To try and right a wrong or do something differently in your life? To avoid the unavoidable or walk past that person that broke your heart, instead of leaving yourself open and engaging the pain. To warn someone of impending danger and get them the help they needed to avoid a catstrophic event.
Would you back in time, or would you focus all your energy on making everything right now? After all, what’s done is done and is to come will be… process the pain of past carnage and give yourself a break for a change! You should be proud of who you are and the wonderful impact you have on others!