This is the kind of thread with which you could make a very snuggly blanket.
I grew up youngest. Still am. Everyone was singing three older brothers mom and dad just singing all the time. There were lots of songs my brothers sang that were sort of racey Barnacle Bill and like that. I wanted to learn them all even as a wee boy. But when it came official time to settle and get to bed Mom would hold me in her lap and sing.
Rockabye a baby, Mommy is a lady, Daddy is a gentleman, and Bobby is a coffee can.
This was the official mom loves me connection. No other song would do. If she started out singing anything else I would squirm and cry.
Over and over until I was butter in her arms and really to big to be there anymore. She would let me crawl up there and she would rock and sing. When I had my babies she would do the same. At family gatherings when we all had our small chidren, we would all be giving each other the look when mom would pick up one of the younguns and start into the rocking and singing. Calm then, real calm would settle all through the house and being alive was more than enough to make us all happy and thankful.