In his autocommentary, the Fourth Panchen Lama supplements his root text on mahamudra with further explanations and numerous quotations supporting them from the texts of previous masters. Here, in this extensive discourse, His Holiness draws on an even wider array of textual sources to analyze and fill out the meaning of this text. He explains, in profound detail, the meditation systems of the various Tibetan traditions that the Panchen Lama states come to the same ultimate point as does mahamudra. His Holiness’s goes on to explain, in great depth, meditation on the conventional nature of the mind and on the voidness of both the self and the mind.