Your mother is a saint now. My mom always encouraged me to pray to family. I've never seen my grandmother but I dreamed her one night and my mom nearly fainted. Familial bonds don't end when you die. There's so much more to human beings than mere physical bodies.
OMG! That's been my view for years. In fact, I consider this physical stuff, this flesh and bone, the least important and most irrelevant part of all.
It's all about the soul, not the body.