Chim- Changing Time

Have you ever done, seen or said something you wish you could take back? Change what was done? What if you could change it so it never happens? What if by some power you could go back and change things, what if you could travel through time and change what was? What would you do? Save a loved one? Help a friend? Help yourself?
Would you be selfish or selfless?
This is what I have to think in order for me to change what was and save the ones I hold close and love.