He was ordained priest at the age of 22 and joined the Jesuits in 1609 to work as a missionary. He was the first European to enter the region that is now the Brazilian state of Rio Grande do Sul. Delicate diplomacy was required to convince the local Indian leaders that he, as a priest, was not there to prepare the way for European settlement of the land.

  From 1613 onwards he founded several of the Jesuit ‘reductions’ which brought Indians together to learn to live in settlements. The ‘reductions’ later became part of Brazil as a result of a territorial exchange between the Spanish and Portuguese empires. Because of the support the ‘reductions’ gave the Indians as against the colonial authorities, they were one of the reasons for the suppression of the Jesuits by the Portuguese Empire in the mid-18th century.

  In the region of Iyuí (now in Brazil) he had difficulties with the local chieftain and sorcerer (‘cacique’) Nheçu (Spanish ‘Ñezú’), who had him killed on 15 November 1628, along with his Spanish companions Juan de Castillo and Alfonso Rodríguez.

  They were beatified in 1934 and canonized by Pope John Paul II on 16 May 1988.

  Augustine had a brilliant legal and academic career, but after his conversion he returned home to Africa and led an ascetic life. He was elected Bishop of Hippo and spent 34 years looking after his flock, teaching them, strengthening them in the faith and protecting them strenuously against the errors of the time. He wrote an enormous amount and left a permanent mark on both philosophy and theology. His Confessions, as dazzling in style as they are deep in content, are a landmark of world literature. The Second Readings in the Office of Readings contain extracts from many of his sermons and commentaries and also from the Confessions.

  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.