四明十義書 2.4

2.4

既令即聞即修起精進心，又云不待觀境，故知不待專為約行立乎觀境方名修觀，但隨聞託事附法觀心，便須精進而修。既云觀心為顯妙行，若非修法，何名妙行耶？

Since it instructs one to give rise to a vigorous mind upon hearing and cultivating immediately, and also says 'not waiting for an object of contemplation', we know that one does not wait for an object of contemplation to be established exclusively in accordance with practice before it is called cultivating contemplation; rather, simply contemplating the mind through entrusting to phenomena and appending to teachings as one hears them, one must vigorously cultivate. Since it says that contemplating the mind is to reveal wonderful practice, if it were not a method of cultivation, why would it be called wonderful practice?