Later, Vincent established confraternities of charity for the spiritual and physical relief of the poor and sick of each parish. From these, with the help of St. Louise de Marillac, came the Daughters of Charity, "whose convent is the sickroom, whose chapel is the parish church, whose cloister is the streets of the city." He organized the rich women of Paris to collect funds for his missionary projects, founded several hospitals, collected relief funds for the victims of war and ransomed over 1,200 galley slaves from North Africa. He was zealous in conducting retreats for clergy at a time when there was great laxity, abuse and ignorance among them. He was a pioneer in clerical training and was instrumental in establishing seminaries.
The deathbed confession of a dying servant opened Vincent's eyes to the crying spiritual needs of the peasantry of France. This seems to have been a crucial moment in the life of the man from a small farm in Gascony, France, who had become a priest with little more ambition than to have a comfortable life.
It was the Countess de Gondi (whose servant he had helped) who persuaded her husband to endow and support a group of able and zealous missionaries who would work among poor tenant farmers and country people in general. Vincent was too humble to accept leadership at first, but after working for some time in Paris among imprisoned galley-slaves, he returned to be the leader of what is now known as the Congregation of the Mission, or the Vincentians. These priests, with vows of poverty, chastity, obedience and stability, were to devote themselves entirely to the people in smaller towns and villages.
Most remarkably, Vincent was by temperament a very irascible person—even his friends admitted it. He said that except for the grace of God he would have been "hard and repulsive, rough and cross." But he became a tender and affectionate man, very sensitive to the needs of others.
"Strive to live content in the midst of those things that cause your discontent. Free your mind from all that troubles you, God will take care of things. You will be unable to make haste in this [choice] without, so to speak, grieving the heart of God, because he sees that you do not honor him sufficiently with holy trust. Trust in him, I beg you, and you will have the fulfillment of what your heart desires" (St. Vincent de Paul, Letters).