Eurhythmy is a form of expressive movement developed by Rudolf Steiner in the early 20th century. It is based on the principle that all movement has a rhythmic quality and can be used to express emotions, ideas, and stories. The movements are often accompanied by music and poetry, and can be used in both individual and group settings. Eurhythmy is a form of art that combines physical movement with music and poetry to create a unique and powerful experience.