In the children's story "How the Grinch Stole Christmas" by Dr. Seuss, the Grinch is a mean-spirited character who despises Christmas and tries to ruin it by stealing all the presents and decorations from the village. However, through the kindness and generosity of the residents, the Grinch realizes the true meaning of Christmas and decides to return all the stolen items and join in the festivities. The story is often seen as a reminder that Christmas is about giving and not about receiving.