To obtain the truth of Buddha, Tiantai Zhiyi 天台智〓 teaches that it's fine to meditate on one's own mind which is easy to be meditated on. But it tends to understand this teaching too easily from old times. In this essay, the most successful one in Tiantai study of Japan-DAIHOU Syudatsu (1804-1884)'s discussion over this problem is taken up, and the traditional comments and their limits are examined. Syudatsu centered on Zhanran 湛然 and Zhili 知禮, settled the traditional comments of Zhiyi's teaching in two meanings-“Jinyao 近要” and “Mingmiao 冥妙”. “Jinyao” means “Jinyuan 近遠” and “Nengzao 能造” of one's own mind. “Mingmiao” means that one's own mind really does exist but without a form. These two meanings are taken to be complementary to each other, and because both are the dharma of mind, they also contain each other.