Five meanings that are related to mind are enumerated by Chih-i. …

With regard to the mind that contains the meaning “line marker” (Hsin-shih Sheng-mo), this refers to the mind that is correct without deviance, which is illustrated by Chih-i in reference to words, practice and principle. In terms of the mind that is related to words, this means that by contemplating mind, one is able to obtain correct words, and be removed from deviant words. In terms of the mind that is related to practice, this means that by contemplating mind, one is able to obtain correct thought and eliminate evil actions. In terms of the mind that is related to principle, this means that by contemplating mind, one’s correct mind is able to depart from false views and attachments, and to penetrate the correct principle. (Vol. 2, Page 397-398)