On a journey through France with his bishop, he came face to face with the then virulent Albigensian heresy at Languedoc. The Albigensians (Cathari, “the pure”) held to two principles—one good, one evil—in the world. All matter is evil—hence they denied the Incarnation and sacraments. On the same principle, they abstained from procreation and took a minimum of food and drink. The inner circle led what some people regarded as a heroic life of purity and asceticism not shared by ordinary followers.
Dominic sensed the need for the Church to combat this heresy, and was commissioned to be part of the preaching crusade against it. He saw immediately why the preaching was not succeeding: the ordinary people admired and followed the ascetical heroes of the Albigenses. Understandably, they were not impressed by the Catholic preachers who traveled with horse and retinues, stayed at the best inns and had servants. Dominic therefore, with three Cistercians, began itinerant preaching according to the gospel ideal. He continued this work for 10 years, being successful with the ordinary people but not with the leaders.
His fellow preachers gradually became a community, and in 1215 he founded a religious house at Toulouse, the beginning of the Order of Preachers (Dominicans).
His ideal, and that of his Order, was to link organically a life with God, study and prayer in all forms, with a ministry of salvation to people by the word of God. His ideal was “to speak only of God or with God."
Almighty God, whose Priest Dominic grew in the knowledge of thy truth, and formed an order of preachers to proclaim the faith of Christ: by thy grace, grant to all thy people a love for thy word and a longing to share the Gospel; that the whole world may be filled with the knowledge of thee and of thy Son Jesus Christ our Lord; who liveth and reigneth with thee, in the unity of the Holy Spirit, ever one God, world without end. Amen.