A partial instruction on how to use both happiness and suffering as the path to enlightenment. This is indispensable for leading a spiritual life, a most needed tool of the Noble Ones, and quite the most priceless teaching in the world.
Jigme Tenpa'i Nyima Rinpoche (1865–1926) was the third throneholder of the Dodrup Chen lineage of the Nyingma school of Tibetan Buddhism. His father was Dudjom Lingpa, and he was a direct student of Dza Patrul Rinpoche
Dodrupchen seems to keep coming up for me lately. I tracked this down to read it because I found that someone was going to be teaching a Zoom class on it, which I wasn't sure I would be able to attend. (I didn't, as it turns out.) About a third of the way into it, though, I could see what a brilliant source for a class it is, in any of several traditions in addition to the Mahayana Buddhism which is its source, being as it were a commentary on a tiny piece of the Bodhicaryāvatāra of the 8th century monk Śāntideva. Of course, when I prepare my on class on this basis, I'll be taking a rather less monastic angle on it.