[QuidQuoPro]

greetings to you,
yes its a good question.
it's true you should release the past in the context that you should not dwell on past events with feelings of guilt or fear. you just end up messing up your life. you are missing out on the 'now'. missing out on the events that are happening now moment by moment. the same applies to dwelling too much on the future. the 'now' is where it is all happening.
however, our memory of the past is a powerful learning tool. we remember when we made mistakes and we should learn from those mistakes so as not to make those same mistakes again and go forward to be a better person. that is where the past is important.
remembering the happy times teaches us what we can do now to create happiness around us.
what we must not do now is feel guilty of mistakes made. feelings of guilt and fear of what has happened in the past only distract from the present.

learn from past events then drop them. use the lessons to live a better life now and the future will take care of itself.

i'm not too good in expressing my concepts into words, please forgive me. i hope ,however, that i have been of some help.

i offer you peace and love,

yusuf