Ngondro Commentary - Instructions for the Concise Preliminary Practices of the New Treasure of Dudjom, Compiled from the Teachings of H E Chagdud Tulku, by Jane Tromge.   Written, then concealed in the Eighth Century by Padmasambhava, these teachings were intended for these degenerate times when few people have leisure to practice. An extremely powerful practice for turning the mind toward dharma, for purifying obscurations, and for bringing forth the qualities of realization.