Wow! I do not doubt that She is a highly realized being. Did some reading on Kyabje Dudjom Rinpoche and Sangyum Rikzin Wangmo. Interesting...
"Generally in our tradition, it is known that when a terton leaves his body, his Dakini consort follows. She had many visions and situations where she was invited by the Dakinis to leave her body to come to their Buddhafields, but she refused, saying she still wanted to be with her children. Once again I thank her for her consideration for being with us as long as she has been. I have no doubt that she has the full power to leave her body whenever she chooses." Her son, Shenp’hen Dawa Norbu Rinpoche
"Often Sangyum Kusho would have visions in which dakinis would appear and grant prophecies that would lengthen Dudjom Rinpoche’s life. When I used to request him for a divination, he would tell me to ask Sangyum Kusho, and said she was better than him at divinations. It was thanks to one of her predictions that Kyabjé Trulshik Rinpoche was able to avert an obstacle to his life, and many are the occasions when she has given me prophecies, and warned me of potential hazards." - Sogyal Rinpoche
Kyabje Dudjom Rinpoche or Dudjom Jikdral Yeshe Dorje (1904-1987) — one of Tibet’s foremost yogins, scholars, and meditation masters. He was recognized as the incarnation of Dudjom Lingpa (1835-1904), whose previous incarnations included the greatest masters, yogins and panditas such as Shariputra, Saraha and Khye'u Chung Lotsawa. Considered to be the living representative of Padmasambhava, he was a great revealer of the ‘treasures’ (terma) concealed by Padmasambhava. A prolific author and meticulous scholar, Dudjom Rinpoche wrote more than forty volumes, one of the best known of which is his monumental The Nyingma School of Tibetan Buddhism: Its Fundamentals and History.