Severus Snape was full of love. That was one thing that could be said for him. Even if the love that he had in his Dream world made him cold, dark and often twisted, in this world the love he had for Lily was able to blossom into a beautiful friendship, and a new love was able to grow. The love he had for his family. His amazing wife, his nearly three-year-old daughter. It showed in his eyes when he looked at her, on his face when they laughed together.
Poor Daisy didn't know all the words to the song, so she started to make them up. She was singing about her Mommy and Daddy, and their dreams, and pausing every other line to ask Daddy what their dreams were.