I leave at once. Dilgo Khyentse Rinpoche made a technical comment and comprehensive ancient texts written by Patrul Rinpoche; It is difficult for an "average initiated". Besides these texts and comments do not really intended for lay practitioners or at least not in its entirety because some passages are rather radical and for Buddhist monks on the path of becoming. It is very rich, written reference wisdom of Tibetan Buddhism but I personally prefer the educational qualities of the works of Zen master Thich Nhat Hanh. Happy reading!
