According to the teaching, it is important for Shingon Buddhist monks to risk their lives to live for the benefit of the people with great desires; and it is the duty of Shingon Buddhist monks to have a clean feeling untouched by mire, and to wish for the benefit of the people with great desires.
真言僧は大欲（たいよく）を持ち、衆生の為に生死を尽くすまで生きることが大切であると説き、清浄な気持ちで汚泥に染まらず、大欲を持って衆生の利益を願うのが真言僧の務めであると説かれている。