Altan Khan of the Tumat Mongols invited Sonam Gyatso to visit Mongolia; but the lama declined. A few years later, Altan Khan sent a large delegation with camels, horses, and provisions to Tibet, again asking Sonam Gyatso to visit him. This time the lama agreed. He left Drepung on the twenty-seventh day of the eleventh month of the Fire-Ox year (1577). He was escorted to the Dam region some ninety miles north of Lhasa by monks of the three great monasteries, representatives of the Nedong Gongma, and various nobles, who gave him a great farewell there.
As the party was about to leave the Dam region, one of the nobles, Sakyong Tashi Rapten, grasped the stirrup of Sonam Gyatso's horse and recited a verse, wishing long life to him. This verse, addressed to the lama as "The Holder of the Faith," became popular and important because of that incident.
Soon after leaving Dam, the party was caught in a blinding snow-storm, which reduced visibility to a few feet. Buffeted by icy winds, they were soon lost on a plateau, which showed no signs of human habitation. Water and grass were scarce and had to be stored on the backs of the camels and used sparingly. Frequently, they were deceived by mirages. Alll in all, it was one hundred and seventy days before Sonam Hyatso and his party saw civilization again.
In the summer of 1578, the party finally arrived at a Mongolian settlement at the outpost of Chahar. They found the Mongols living in felt tents and keeping cattle, goats, sheep, and horses. These tent-dwellers lived as nomads, eating meat, butter, milk and cheese, and drinking fermented mare's milk (kumiss), the national beverage. A reception party from Altan Khan met Sonam Gyatso at Chahar, and after a few more days of travel, he was welcomed by Altan Khan himself, along with a thousand cavalrymen. Together they journeyed on to the Mongol's capital. The Khan, like his subjects, lived in a tent, albeit a very sumptuous one.
Sonam Gyatso began a program of religion instruction for the Khan and his people and on one occasion preached in the open to the entire population. Altan Khan was converted to Buddhism. According to the
Dngos-grub shing-rta, a biography of Sonam Gyatso, the Khan made the following proclamation sponsoring Buddhism:
We, Mongols, are powerful because our ancestral race originally descended from the sky, and [Ghenghis Khan] extended its empire even to China and Tibet.
The Buddhist religion first came to our country in earlier times, when we gave our patronage to Sakya Pandita. Later, we had an Emperor named Temur, during whose reign our people had no religion and our country degenerated; so that it seemed as though an ocean of blood had flooded the land.
Your visit to us has now helped the Buddhist religion to revive. Our relationship of patron and lama can be likened to that of the sun and the moon. The ocean of blood has become an ocean of milk.
The Tibetans, Chinese, and Mongols now living in this country should practice the Ten Principles of the Lord Buddha. Moreover, I am establishing, from this day forth, certain rules of behavior for the people of Mongolia.
Previously, when a Mongol died, his wife, personal servant, horses and livestock were also sacrificed. In the future, this is forbidden! The horses and animals of the deceased may be given by mutual consent to the lamas and monks in the monasteries; and the family, in return, may request the lamas to pray for the deceased. In the future, it is not permitted to sacrifice animals, wives, or servants for the benefit of the deceased. Those responsible for human sacrifices will be executed under the law, or will have their property confiscated. If a horse or any other animal is sacrificed, ten times the number of animals killed will be confiscated.
Any person who injures a monk or a lama will be severely punished. The practice of blood sacrifice to the onkon [image] of the deceased is forbidden in the future and such statues already in existence must be burned or destroyed. If we hear that such statues are being kept secretly, we will destroy the houses of those who have concealed them.
The people may instead keep the image of Yeshe Gonpo, a Tibetan deity, in their homes and may offer him milk and butter, instead of blood.
Every person should benefit his neighbors and not steal from his fellow men.
In short, those laws already existing in U-Tsang [central Tibet] will also be practiced in this country.
In return for his teachings, Sonam Gyatso received a number of presents, together with the title, "Dalai Lama." "Dalai" is Mongolian for "ocean" and connotes that the Lama's learning was as deep and as broad as an ocean. He was also given a seal inscribed with the title: Dorje Chang ("Holder of the Thunderbolt"). Sonam Gyatso then gave Altan Khan the title of "Religious King, Brahma of the Gods" and prophesied that within eighty years the descendants of the Khan would become the rulers of all Mongolia and China.
The open site where the Dalai Lama had preached and where titles and presents were exchanged now acquired a certain sanctity. The Dalai Lama proposed establishing a monastery there, and Altan Khan agreed to finance the project. The monastery was named Thegchen Chonkhor. Many Mongol tribal leaders and even some Chinese notables, hearing of the Dalai Lama's spiritual powers, invited him to their own regions. He visited some of these, including Lan-chou on the Chinese border. The Chinese asked him to use his influence with the Khan to prevent the Chahar tribes from invading Chinese territory and the Dalai Lama succeeded in bringing about a lessening of the conflict.
Tibetan sources relate that the Dalai Lama also accepted an invitation from the governor of the Chinese province of Ning-hsia. There, he began to preach to large numbers of people coming from eastern Turkestan, Mongolia, and neighbouring areas in China. At first, it was difficult for the people to follow him, as he spoke in Tibetan only; but the governor solved this problem by providing him with three interpreters. While at Ning-hsia, Sonam Gyatso received an envoy from the Chinese Emperor of the Ming court, who brought presents and an invitation to visit the Chinese capital; but Sonam Gyatso had to decline, as he had already agreed to visit the region of Kham in eastern Tibet.
In order to maintain the close relationship already established between the Dalai Lama and the Altan Khan, it was decided to set up a diplomatic office at Tongkhor, also known as Lusar, where representatives of both the Lama and the Khan would remain to channel intercourse. Tongkhor was about halfway between Lhasa and the outpost of Chahar in Mongolia.