The essay main talks about the theory of Buddhist anatman and the meaning of Life-and-Death studies. The essay explains Buddhist anatman-samsara is in agreement in principle. To reach 「Nirvana Vimoksa」, we need to get rid of atman ignorance from the view of anatman, and comprehend Nirvana thinking from the view of 「Paticcasamuppada」 and 「Advaya-marga-satya」. This is what Buddgist so-called the supreme experience of 「life ultimate concernments」.