The art of eurythmy tries to make what is invisible visible through harmonious, disciplined plays of color, form, sound, and motion. When this art was still young and little known, Rudolf Steiner's introductory talks prepared nearly 300 audiences for their encounter with this whole new way of presenting drama, poetry, and music through expressive movement. Full of life and creativity, these talks illuminate the richness underlying the spiritual laws of this new art form. Sixteen of Rudolf Steiner's talks have been carefully selected and are presented here for the first time in English as an introduction to the aesthetic, pedagogical, and therapeutic secrets of the developing art.