Forget Vs Remember

Forget about those dull and overcast sky,
But don't forget the time spent in the sun;

Forget the silly mistakes that could be undone,
But don't forget what the joys of life has stored for you.

Forget about the misfortunes you've aimlessly encountered
But don't forget your lucks have arised around the bend;

Forget the time you fell and were defeated,
But don't forget how much life's lessons you've learnt;

Forget about your past broken relationship;
But don't forget the ones that love you unconditionally today;

Forget things that have been out of reach,
But don't forget the great victories you've gained;

Well, it's great to forget the bitter pasts, so that we have courage to move on, but somehow, it worths to remember rather than trying to forget. Life has occassionally been a joke to us, we forget what we want to remember, and we remember what we want to forget. This has posted the very underlying question when we fail to remember the healthiest and happiest moments of our lives, and why we, in turn, tend to remember in vivid image of our most suppressed and painful moments?