Great Day for Up! is a book by Dr. Seuss
The meanings of "up" are conveyed with merry verse and illustrations in a happy book that celebrates the joy of life.
People, animals, birds, balls and planes and balloons and kites being up, and the citizens being wide awake up and ready for the day, except one boy who sleeps in the house in his bed in his room and doesn't want to get up.
Every new day starts a new adventure.