The Three-Fold Space: Pith Instructions from the Secret Cycle of the Great Perfection

English-language commentary by Kyabjé Jikdrel Yeshe Dorje on a root text by his predecessor. From The Collected Works of Dudjom Rinpoché (Dudjom Sung Bum), Volume Pa (13), pp 567–576.

Colophon:
To benefit some of my fortunate children-disciples, I, Jigdral Yeshé Dorjé, a yogi devoted to the secret canon of Great Perfection teachings and who practices it, have written in words my spiritual master's pith instructions from the profound oral lineage. I wrote this for individuals who have properly received instruction and do this practice. Apart from them, if untamed persons who only discuss Dharma, or persons who have violated tantric commitments, or persons with wrong views read this book, I invite three protectors—Queen of Life-Force (Ekajati), Rahula, and Dorjé Lekpa—to enjoy their hearts' blood as an offering drink.