In the thirteenth century, St. Dominic preached to people who had been confused by Albigensianism, in which it was believed that only pure spirit was good, and matter was evil. Suicide was commendable. Marriage morals could be discarded since marriage involved the physical world. Matrimonial intercourse was seen as unlawful. Concubinage, being of a less permanent nature, was preferable to marriage.
Click on the image to read the story of St. Dominic
Do you see any signs of this type of error today?
Read about the life of St. Dominic on the website of the Dominican Sisters of the Immaculate Conception.