['I opened an old box of my grandfathers possessions that I was given after he passed away and found his watch that he always wore. I became really nostalgic and thought of all the good times I had with him.']
It is always good to take the time to reflect on happy memories.  I do that from time to time myself
I opened an old box of my grandfathers possessions that I was given after he passed away and found his watch that he always wore.  I became really nostalgic and thought of all the good times I had with him.