A stylite (from Greek στυλίτης, stylitēs, "pillar dweller", derived from στῦλος, stylos, "pillar", Syriac: ܐܣܛܘܢܐ ʼasṯonáyé) or pillar-saint is a type of Christian ascetic who live on pillars, preaching, fasting and praying. Stylites believe that the mortification of their bodies would help ensure the salvation of their souls. Stylites were common in the early days of the Byzantine Empire. The first known stylite was Simeon Stylites the Elder who climbed a pillar in Syria in 423 and remained there until his death 37 years later.
Palladius of Galatia tells of Epidius, a hermit in Palestine who dwelt in a mountaintop cave for twenty-five years until his death.St. Gregory of Nazianzus (Patrologia Graeca 37, 1456) speaks of a solitary who stood upright for many years together, absorbed in contemplation, without ever lying down. Theodoret assures us that he had seen a hermit who had passed ten years in a tub suspended in midair from poles (Philotheus, chapter 28).
There seems no reason to doubt that it was the ascetic spirit manifested in such examples as these which spurred men on to devise new and more ingenious forms of self-mortification and which in 423 led Simeon Stylites the Elder first of all to take up his abode on the top of a pillar. Critics have recalled a passage in Lucian (De Syria Dea, chapters 28 and 29) which speaks of a high column at Hierapolis Bambyce to the top of which a man ascended twice a year and spent a week in converse with the gods, but the Catholic Encyclopedia argues that it is unlikely that Simeon had derived any suggestion from this pagan custom. In any case Simeon had a continuous series of imitators, particularly in Syria and Palestine. Daniel the Stylite may have been the first of these, for he had been a disciple of Simeon and began his rigorous way of life shortly after his master died. Daniel was a Syrian by birth but he established himself near Constantinople, where he was visited by both the Emperor Leo and the Emperor Zeno. Simeon the Younger, like his namesake, lived near Antioch; he died in 596, and had for a contemporary a hardly less famous Stylite, Saint Alypius, whose pillar had been erected near Hadrianopolis in Paphlagonia. Alypius, after standing upright for 53 years, found his feet no longer able to support him, but instead of descending from his pillar lay down on his side and spent the remaining fourteen years of his life in that position. Roger Collins, in his Early Medieval Europe, tells us that in some cases two or more pillar saints of differing theological viewpoints could find themselves within calling distance of each other, and would argue with one another from their columns.