One of the books I mentioned above, "Attaining the Way" by Master Sheng Yen has a good translation of Master Xu Yuns teachings in it. Master Xu Yuns teachings and autobiography had a huge impact on my life. He, almost single handedly, revitalized Chan in China when it was almost dead there. Rebuilt the Sixth Patriarchs monastery and the monastery of Master Yun Men.
"But if you know how to observe yourself, you will discover your real nature, the primordial state, the state of Guruyoga, and then all will become clear because you will have discovered everything"-Namkhai Norbu Rinpoche