Stylites or Pillar Saints. By far the most celebrated are Simeon the Stylite of Syria, and Daniel the Stylite of Constantinople. Simeon spent thirty-seven years on different pillars, each loftier and narrower than the preceding. The last was sixty-six feet high. He died in 460, aged seventy-two. Daniel lived thirty-three years on a pillar, and was not unfrequently nearly blown from it by the storms from Thrace. He died in 494. Tennyson has a poem on Simeon Stylites.
"I, Simeon of the Pillar by surname.
Stylites among men- I, Simeon,
The watcher on the column till the end."
I think these guys were the heretofore untraceable "God's organization" during the early Medieval period. They had no part of the world, and were too emaciated to take up arms. Meeting attendance may have been somewhat sketchy, though.