I have been reading "Essential Readings" of Thích Nhất Hạnh. I have been reading a lot of eastern texts like this one over the last six months, and so most of the ideas in the book have been pretty redundant for me. However, the middle chunk has blown me away. He discusses the Buddhist concept of "emptiness," which I have failed to understand for a long time. But he uses wonderfully understandable language, and I feel like I finally have a meaningful understanding of some concepts I have been struggling with for a while.