法華玄義釋籤 2.80

2.80

觀心者，初示用觀處，七番共解已釋五章，會異居後今所未論，故總將第六觀心一章以消前五，令一一文俱入觀門。然須細釋令成妙觀。

Regarding contemplating the mind: initially demonstrating the locus for applying contemplation, the sevenfold collective explanation has already explained the five chapters; harmonizing differences comes afterward and is not discussed at present; therefore, taking the sixth chapter on contemplating the mind as a whole to resolve the previous five causes each and every passage to enter the contemplation portal. However, one must explain it in detail to accomplish the wonderful contemplation.