Rev. Dan Schatz & Pam Baxter. The Flower Celebration is one of the most important and celebrated Unitarian Universalist rituals in the world, a celebration of the beauty in diversity as we each give a flower and come home with a different flower. On this Mother’s Day, we dedicate this all ages service to the many ways beauty comes forth in the world – through nature, through parenting, and through those gifts we each bring to one another and to life. Please bring a cut flower with you for each member of your family.