I have heard of such attained masters and one of them would be HH Song Rinpoche. Goosebumps...
Taken from
http://www.drophenling.com/our-teachers/h-e-kyabje-zong-rinpoche/Kyabje Zong Rinpoche’s Passing Away
On November 15th 1984, this day marked Buddha’s descent into this world after returning from the Celestial Realm of Indra, would come to strike everyone with immense sadness and grief. Rinpoche normally awoke at three o’clock in the morning and finished his daily meditation before dawn.
Tenzin Wangchuk told Rinpoche that he had called a medical doctor from the Dueguling Tibetan Resettlement Hospital half a mile away to give Rinpoche a check-up. It was shortly after nine o’clock in the morning when the doctor arrived. After the examination, the doctor told the students that he could detect no serious illness, only that Rinpoche was rather weak and could use some glucose. As the doctor didn’t have any glucose with him, he sent his assistant back to his clinic to fetch some. When the students entered the room a few minutes later, their beloved Teacher had left them for another realm. As he had prophesied, Rinpoche did not die in hospital, in pain, or from a serious illness. Those around him were amazed how Rinpoche’s body remained as if in a deep sleep, without losing luster or color. It was clear that their teacher was in a most subtle state of mind, embracing the meditation of clear light. He was eighty years old.
Arising from Clear Light State
On Saturday, the third day after Rinpoche’s passing, Kyabje Zemey Rinpoche and other high lamas gathered to conduct a self-initiation of Chittamani Tara, and the monks of Ganden Shartse, who had completed a Yamantaka retreat, conducted the self-initiation of Yamantaka. From the day Rinpoche had passed away the air had remained so still that barely a single leaf had rustled in the garden, but around three o’clock the weather suddenly changed and a strong wind came up, violently blowing the dust from the ground into the sky. When the wind subsided, word spread that Zong Rinpoche had arisen from the Clear Light state and had ascended into the enlightened realm. Residents of Mundgod also reported feeling land tremors before and after Rinpoche’s passing. Countless numbers of people, including abbots, high-ranking lamas, and geshes from all three monastic universities, came to pay their respects and take an active part in the rituals.
Auspicious signs
Those who were present during these days witnessed many unusual signs. On the third day, just before the cremation hearth was lit, seven Indian ascetics clad in new saffron robes and leading a loaded elephant walked into the compound. When asked what they were doing there, they replied that this day marked a very auspicious occasion, and asked for an offering. Tenzin Wangchuk offered them bananas and money, and they left, satisfied. It was an unprecedented event, and everyone remarked that it was a very auspicious sign. Later, when monks asked the local villagers about the elephant, they couldn’t find anyone who had seen it.
In Tibetan tradition, the elephant is often compared to a bull. When the reincarnation of Kyabje Zong Rinpoche was born on May 27, 1985, in the year of the Bull or the Ox. It became clear that the appearance of the elephant and the ascetics had had a definite significance.
Completely intact unburned holy skull
The twenty-fourth of November was the night of the full moon. It was one of the days that Rinpoche had circled in his diary before his death, and so it was on this morning that the members of Zong Labrang opened the cremation hearth. Lying among Rinpoche’s ashes they found his skull unburned and completely intact. Zong Rinpoche’s previous incarnation, Zongtrul Tenpa Chopel, who had died in 1899, had also left his skull intact. That relic, which bears the Tibetan syllable AH, is kept to this day at Zong Rinpoche’s residence as a treasure of faith and honor.
Kyabje Zong Rinpoche’s Swift Return
When the cremation hearth was opened, a large quantity of relic pills were found between the two pans. Finally, when the lower pan was removed, everyone present saw in the sand mandala two unmistakable footprints of an infant, complete with heels and toes. The discovery of these extraordinary signs made everyone feel great peace, reaffirming their faith in their Teacher, and assuring them that his return would be swift.
Kyabje Zong Rinpoche circled the dates in his diary!
Some time before his passing, Kyabje Zong Rinpoche had circled three dates in his diary. The first was the date that he rose from the Clear Light state. The second was the day of the cremation. The third was the day the cremation hearth was opened. This made it very convenient for the disciples to plan and conduct the traditional arrangements, but the real message is of course, that Rinpoche had gone beyond ordinary death and rebirth. His last extraordinary deeds demonstrated a fully controlled, fearless death. They teach us that one day, everything must come to an end. Those present were indelibly impressed with the knowledge that practice and effort can enable one to completely transcend death. Thus, the life of Kyabje Zong Rinpoche became a teaching on how to live meaningfully and die well.
