Dealing with death of a grandparent?

They always say think of the birth rather than the death. My aunt die of cancer. She suffered all the way to the end, they say she didn't suffer, but every time they move her she sounded like she was in pain. I was there, it was a close aunt, but for some reason I didn't cry or anything, I don't know why? well think of it as at least she not suffering or die young, keep busy, have time to cry at night time go to the movies, get some exercise, visit friends, mainly keep busy.