法華文句記 8.86

8.86

「觀心者」，以一實觀貫其所誦，故名為「一」，無一句偈不入實者。「云云」者，應明一觀之相，乃至大師誦經觀法，還約誦持以成觀相，細思。

Regarding 'contemplating the mind': penetrating what one recites with the single contemplation of the real, it is therefore called 'one'; there is not a single line or verse that does not enter into the real. 'Et cetera' means that one should clarify the characteristic of the single contemplation, extending to the Great Master's contemplation method of reciting the sūtra, which is also formed into the characteristic of contemplation in terms of reciting and upholding; ponder this carefully.