"Skills" (work, art) refers to various techniques that human beings have made and handed down with various modifications. There is the techniques of body methods and arts, including methods of breathing or meditation. A skill is a mediator between a mind and a thing, and is a style of the mind using the body. While it is related to religious ideas and religious thought, religious "physical intellect" also involves various skills. I will introduce the originality of the Japanese religious physical intellect and "ecologocal wisdom" by focusing on "waterfall praxis" as one example of a religious skill.