A contemporary of the better known Saint Columba of Iona and disciple of Saint Comgall, he was prior of Bangor Abbey in County Down, Ireland. He later took oversight of the monastery and thus became the prior of Bangor Abbey. He left Ireland on a missionary journey to the west of Scotland, where he founded a monastery around which there grew up the present city of Paisley.

  Bernard arrived at Cîteaux with four of his five brothers and two dozen friends. Within three years he had been sent out to found a new monastery at Clairvaux, in Champagne, where he remained abbot for the rest of his life. By the time of his death, the Cistercian Order (“the Order of Cîteaux”) had grown from one house to 343, of which 68 were daughter houses of Clairvaux itself.

  Bernard was a man of great holiness and wisdom, and although he was often in very poor health, he was active in many of the great public debates of the time. He strongly opposed the luxurious lives of some of the clergy, and fought against the persecution of the Jews. He was also a prolific writer, and the Liturgy of the Hours uses extracts from many of his sermons.

  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.