Bruno and Pierre help Gilbert build the dam. Fur Ball is lazy and she doesn't help. Only when Fur Ball decides to help does she experience love.
In Zen Tails first book of Love, the sub title is Love is Helping. Helping is an activity that allows love to arise. Enacting love allows it to grow and become stronger. The Zen Tails First Book of Love only has a few simple words on a page, but it is easy for a parent when reading to a young child to expand on the joys of helping and loving.