In Islam we believe that the dead can hear us, so we make prayers for them, we give charity in their names and perform other worshiping rituals in their name too. The best kind of charity is the ones that have a continuous effect (sadaqa jariya), like donating to a school, planting a tree, digging a well for people in need ... etc. The belief that good people will enter heaven and that we’ll once meet again there if we die as good people is very comforting as well.

When I remember my lost grandfather, I try to do things that he’d be happy about and things that he’d have wanted to be done when he was alive.

May your lost ones all rest in peace.