If you'd rather live surrounded by pristine objects than by the traces of happy memories, stay focused on tangible things. Otherwise, stop fixating on stuff you can touch and start caring about stuff that touches you.
The past doesn’t exist except as a memory, a mental story, and though past events aren’t changeable, your stories about them are. You can act now to transform the way you tell the story of your past, ultimately making it a stalwart protector of your future.
I once read that forgiveness is giving up all hope of having had a different past...but forgiving is not the same as obliterating memory.
A lot of my clients say they don't deserve to mope about their sad little memories while children are starving in India. I say that just because your broken arm isn't as serious as someone else's gut wound, that doesn't mean your injury isn't excruciating or doesn't require attention. If you want to help the Indian children, or make the world a better place in any other way, you have to start by becoming whole yourself.