‘Ichinen-sanzen 一念三千’ that was explained in “Mo-Ho Chih-Kuan 摩訶止観,” the transcript of T’ien-T’ai Chih-i（532-597）’s lectures, as is well known, is a technical term that represents our mind or psyche that it is difficult for us to comprehend. ‘Sanzen,’ meaning three thousand, is the number achieved by multiplying ‘Junyoze 十如是（a composing element of phenomenal world and doctrines）’ in the Lotus sutra, ‘Jikkai 十界（the ten dharma realms: from the Hell to Buddha）’ and ‘Sansyu-seken 三種世間（the three types of worlds: the world of sentient beings, the world of the five skandhas, and various lands）. In his teaching, these elements that originally our mind has constitute our mind, and therefore our mind has characteristics of another’s. Then in this study, we consider about the theory of ‘Ichinen-sanzen’ particularizing human psyche ― not the mind that we hypostatize but the psyche being lead to expression by the relation nature— based on two perspectives that psychoanalysis proselytizes, the ego and the subject, we will attempt a consideration about the human existence and mind that both “Mo-Ho chih-Kuan” and the psychoanalysis expound.
