Surrounded by white mountain cliffs, the valley of Meshö is like an open lotus flower and the foothills covered with meadows and forests. Flowers grow abundantly in summertime and water flows here and there. In the middle, the heart of the lotus, is a huge white rock with a cave in the center called Padma Shelpuk, the Lotus Crystal Cave. The rock, cave and surrounding area are all white in color. The cave contains many naturally appearing images and letters. Yeshe Tsogyal practiced in a small cave to the left, which has windows which also appeared naturally, though they look man-made. The practice caves of Vairotsana and Shri Singha with their naturally-appeared thrones are at the top of the rock.
Many rainbows appeared in the sky. On arriving, they made a big burnt offering. Kongtrül offered the serkyem, the offering to the Dharma protectors, and Khyentse, holding a vajra, sang the Lhasum Damdrak song of command to the local deities. People said (about Jamyang Khyentse Wangpo), “Something special must be happening today because Tulku Rinpoche is doing something.” Everyone was then told to recite the Vajra Guru mantra and to supplicate Guru Rinpoche. The three masters and some others went inside the cave while those who could not fit stayed outside by the opening.
As everyone chanted the Vajra Guru mantra and the Seven Line Prayer, Chokgyur Lingpa’s experience blazed. Normally you can’t reach it, but he flew up and reached the ceiling. . From the ceiling he extracted the terma box containing Dzogchen Desum. As the terma object, he took sacred medicine and nectar blessed by Shri Singha, as well as some hairs of Yeshe Tsogyal and Vairotsana. The terma box was wrapped in one of Guru Rinpoche’s garments. Chokling blessed Khyentse, Kongtrül and everyone nearby with the terma box. People now knew he was a true tertön. Chokling told them, “All who came here are most fortunate. If things work out, I have many things left to do. The kindness of Guru Rinpoche and his consort is inconceivable..” Jamyang Khyentse continued, “Chokling is a great tertön, a very precious one. His terma teaching is extremely precious, as is this place. Everyone should make offerings and circumambulations. The three of us have now opened the gate to this sacred place. When you die, you will all go to the Copper Colored Mountain -- I promise.”
pp 8-9, in The Life of Chokgyur Lingpa (PDF file)
Tsewang Norbu was quite humble; he once told Samten Gyatso, "I'm nothing special, not at all. I don't have any great qualities, not a single one, except for one thing: even though I was just six months old at the time, I clearly remember receiving the Three Sections (Dzogchen Desum) from the two great treasure masters." [Jamyang Khyentse Wangpo and Chokgyur Lingpa] As a matter of fact, the Three Sections had just then been revealed [at Pema Shelpuk, see this post].
Twenty-five people were present at this event, including Khyentse and Karmey Khenpo. The moment the terma was revealed Chokgyur Lingpa called out to the child's mother, "Bring the kid here!" She brought the baby over, wrapped in blankets, and sitting on a tray of woven reeds covered with a layer of dried sheep droppings and then with a couple of layers of cloth, This was all in typical Khampa style for an infant, leaving the child free to pee whenever need be.
Tsewang Norbu sat right between Khyentse and Chokling while he received the empowerment. Chokgyur Lingpa first conferred the empowerment on the baby and only then upon Khyentse. But because of the command that this empowerment only be given one on one, no one else received it--not even Kongtrul. That is also why the many lineages for the Three Sections all went through Tsewang Norbu.
from Blazing Splendor, pg. 71