With regard to sūtra that means line marker (Han-sheng-mo), Chih-i addresses that when the meaning “line marker” is discussed in terms of teaching, it indicates that when one hears the teaching of the Worldly Siddhānta, one eradicates heretic views. One is not deluded by a heretic force and is able to enter the correct path. When the meaning “line marker” is discussed in terms of practice, it indicates that when one hears the teaching of the Siddhānta for Each Person, and the teaching of the Siddhānta of Counteraction, one alters from the wrong path to the correct path. When the meaning “line marker” is discussed in terms of doctrine, it indicates that when one hears the teaching of the Siddhānta of the Supreme Truth, one severs false views in this shore of the mundane world, and reaches the other shore of liberation. (Vol. 2, Page 392)
The Profound Meaning of the Lotus Sutra: Tien-tai Philosophy of Buddhism