Great experience, Anne. We don't turn "Grandparents" for no reason. The experience in life has taught us many lessons others are still trying to figure out and are not ready to grasp!
It must be a challenge to be a grandparent, but one I will face cheerfully!
I am already collecting (in my mind) those Bible songs I used to sing to my little ones! Songs I learned as a child that have definitely impacted my relationship with my Creator. Simple words with profound impact til this day!