Zaveh, a village in Khorasan, was home to the famous Qotb al-Din Heydar, a most remarkable man. In summertime he would walk through fire, and in winter plunge himself in ice, and throughout the surrounding territories people came to observe these marvels. All who beheld him in the act were struck by a compulsion to renounce the world, and adopted felt clothes and went barefoot. It often happened, I have heard, that lords and princes would come, and hurl themselves from their horses at the sight of him, and put on felts. And I have seen Turkish soldiers in the flower of their fighting strength who wore the felt and went barefoot, and called themselves companions of Heydar.
Some Sufis say the shaykh was seen one day atop a high dome, too high to be scaled, and how he had climbed it was baffling to everyone. Then, on making his descent, he simply walked down as if treading level ground.
At the time the Tatars came to Zaveh, in the year 618 (= 1221 CE), the shaykh was still alive.
From The Monuments of Inhabited Lands of al-Qazwini
