The PAST is a nice place to visit, but certainly not a good place to stay.
You Can't Master your future if you're still a Slave to your PAST.
No matter how much you visit the past, there is nothing NEW to see.
Do not dwell in the past, do not dream of the future, concentrate the mind on the present moment.
You can't bring back the past. It's gone. All you can do is let go, move on, and make better memories for the future.