My primary sources are the writings of Geshe Kelsang Gaytso. His Ocean of Nectar is an analysis of Chandrakirti’s Guide to the Middle Way, which is based on Nagarjuna’s writings. I have read through Shantideva's Guide to the Bodhisattva's Way of Life, which also explores the nature of mind, the self, and so on. I have it on tape, and I've listened to it many times, but it's such a dense read, that it's hard to really absorb without reading it. The root source material is cryptic and translated many times, so I rely on English interpretations. Therefore, my understanding will not be complete. That being said, I think I have some grasp on the basic concepts.

Having discovered these writings, I find it amusing how Western philosophers are just starting to figure out what Indian mystics figured out 2,500 years ago. And of course, in true Western fashion, they think they discovered something for the first time. Last year I read The Case Against Reality by Donald Hoffman, and it felt like I was reading Tibetan Buddhism.