History of the Christian Church
The Middle Ages. A.D. 1049-1294
Philip Schaff (1819-1893)
"The body of Thomas was buried in the crypt. The remains of his blood and brains were sacredly kept. His monkish admirers discovered, to their amazement and delight, that the martyr, who had once been arrayed in purple and fine linen, wore on his skin under his many garments the coarsest haircloth abounding with vermin. This seemed to betray the perfection of ascetic sanctity according to mediaeval notions".