Humbert is at the center of ascetic writers in the Dominican Order. In this role, he added significantly to its spirituality. His writings are permeated with "religious good sense," and he used uncomplicated language that could edify even the weakest member. Humbert advised his readers, "[Young Dominicans] are also to be instructed not to be eager to see visions or work miracles, since these avail little to salvation, and sometimes we are fooled by them; but rather they should be eager to do good in which salvation consists. Also, they should be taught not to be sad if they do not enjoy the divine consolations they hear others have; but they should know the loving Father for some reason sometimes withholds these. Again, they should learn that if they lack the grace of compunction or devotion they should not think they are not in the state of grace as long as they have good will, which is all that God regards".

What did Humbert use to teach even weak members of the Dominican Order?