大毘盧遮那經供養次第法疏 1.4

1.4

釋此經法，四門分別（初述大意　次說來由　三釋題目　四隨文解釋）。

In explaining the Dharma of this scripture, there are four gates of distinction: (first, setting forth the general meaning; second, explaining the background; third, interpreting the title; fourth, explaining according to the text).