The words that became famous from a Zen koan dialogue of Nansen and joshu which was a learned and virtuous priest of Zen of Tang period in china. Was separated from our daily occurrence with "realization" to say in Zen; is not far. It is casual, and we spend the daily life that it is natural in joy, sorrow, anger, hope till we go to bed after getting up. The world where "realization" is rich certainly spreads out in such a human feelings, human occupation.