The bond between her and her grandmother is the sort of thing that causes me to cry through a movie.

I cried great heaving sobs at the moment when grandma says "Go," and Moana heads out through the reef to "How Far I'll Go" with a glittering manta ray figure in the water beneath her. I cried again at the grandmother's love and support for her when all seems lost and beyond her. (Some of this is that my grandmother helped raise me, and she died a couple of years back, and now I cry at grandmother-grandchild bonds in films, which are rare enough. Some of it... is it was just that powerful.)

I cried again the second time I saw it.