In the change of religion, care was taken to render the transition from falsehood to truth as little violent as possible. Though the first proselytes were kings, it does not appear that there was any persecution. It was a precept of Pope Gregory, under whose auspices this mission was conducted, that the heathen temples should not be destroyed, especially where they were well built,--but that, first removing the idols, they should be consecrated anew by holier rites and to better purposes,[38] in order that the prejudices of the people might not be too rudely shocked by a declared profanation of what they had so long held sacred, and that, everywhere beholding the same places to which they had formerly resorted for religious comfort, they might be gradually reconciled to the new doctrines and ceremonies which, were there introduced; and as the sacrifices used in the Pagan worship were always attended with feasting, and consequently were highly grateful to the multitude, the Pope ordered that oxen, should as usual be slaughtered near the church, and the people indulged in their ancient festivity.[39] Whatever popular customs of heathenism were found to be absolutely not incompatible with Christianity were retained; and some of them were continued to a very late period. Deer were at a certain season brought into St. Paul's church in London, and laid on the altar;[40] and this custom subsisted until the Reformation. The names of some of the Church festivals were, with a similar design, taken from those of the heathen which had been celebrated at the same time of the year. Nothing could have been more prudent than these regulations: they were, indeed, formed from a perfect understanding of human nature. Whilst the inferior people were thus insensibly led into a better order, the example and countenance of the great completed the work. For the Saxon kings and ruling men embraced religion with so signal, and in their rank so unusual a zeal, that in many instances they even sacrificed to its advancement the prime objects of their ambition. Wulfhere, king of the West Saxons, bestowed the Isle of Wight on the king of Sussex, to persuade him to embrace Christianity.[41] This zeal operated in the same manner in favor of their instructors. The greatest kings and conquerors frequently resigned their crowns and shut themselves up in monasteries. When kings became monks, a high lustre was reflected upon the monastic state, and great credit accrued to the power of their doctrine, which was able to produce such extraordinary effects upon persons over whom religion has commonly the slightest influence.