"Let every little heart prepare our room"

From Talia's mother:
We sang a lot at home and Talia loved singing Christmas carols the year she was three. 'Joy to the World" was such a favorite that for a couple weeks we added it to her bedtime lullabies. However she insisted on a word change as follows: instead of "Let every heart prepare him room", she (and we) would sing, "Let every little heart prepare our room." I thought perhaps it was sung this way in her atrium at school, but apparently not. It says a lot to me about her feeling at "home" and claiming space (collectively) at school..."little" hearts are important, and "our" room is special.