The song "Happy Xmas (War Is Over)" is about the desire for peace and a sense of unity among people during the holiday season. It urges people to come together and work towards ending the conflicts and divisions in the world. The lyrics reflect the hope that the Christmas season can be a time of peace, joy, and togetherness. The song was originally released in 1971 by John Lennon and Yoko Ono, with the intention of spreading a message of peace during a time of war.