 The function of the hosshin is equated with all movements and change that occur in the cosmos. Such cosmic alterations are categorized in three ways in terms of visible form (e.g., loco-motion or change of place, and trans-formation or change in shape), the audible (sound), and the mental (the thinking process). Visible alterations are movements of Dainichi’s body (shin), audible alterations are movements of Dainichi’s speech (ku), and mental alterations are movements of Dainichi’s thoughts (i). Together they are called the “three mysteries” (Skrt: tri-guyha; Chn: san-mi; Jpn: sanmitsu) making up the functions (yū) of the hosshin. Since the body of Dainichi is the cosmos itself, these “three mysteries” of its functions are at work in all thing-events and are ultimately non-dualistic with the corresponding movements of ourselves.