Ornament of the Sutra Collection ཐེག་པ་ཆེན་པོ་མདོ་སྡེའི་རྒྱན།

Chapter 12 deals with teaching the Dharma in terms of motivation, usefulness and uselessness, perfection of teaching, differentiation of various intentions and flexible intentions of the teachings, and the benefits.
Complete search of relative and ultimate truth, the way of studying, reflecting and meditating on the Dharma, meditating on shine and lhagtong, the relative and ultimate level, devoid of perceiver and perceived object, like a dream, to focus on the clarity and awareness aspect of mind, the 5 signs of study: craft, medical, language, logical sign, inner meaning.