He founded a monastery in Rome and some others in Sicily, then became a monk himself. He was ordained deacon and sent as an envoy to Constantinople, on a mission that lasted five years.

  He was elected Pope on 3 September 590, the first monk to be elected to this office. He reformed the administration of the Church’s estates and devoted the resulting surplus to the assistance of the poor and the ransoming of prisoners. He negotiated treaties with the Lombard tribes who were ravaging northern Italy, and by cultivating good relations with these and other barbarians he was able to keep the Church’s position secure in areas where Roman rule had broken down. His works for the propagation of the faith include the sending of Augustine and his monks as missionaries to England in 596, providing them with continuing advice and support and (in 601) sending reinforcements. He wrote extensively on pastoral care, spirituality, and morals, and designated himself “servant of the servants of God.”

  In the earliest centuries all vestments were white – the white of baptismal purity and of the robes worn by the armies of the redeemed in the Apocalypse, washed white in the blood of the Lamb. As the Church grew secure enough to be able to plan her liturgy, she began to use colour so that our sense of sight could deepen our experience of the mysteries of salvation, just as incense recruits our sense of smell and music that of hearing. Over the centuries various schemes of colour for feasts and seasons were worked out, and it is only as late as the 19th century that they were harmonized into their present form.