The main difference was in the nonmendicant aspect of the Jesuits, like the brothers in the previous three orders, and in accordance to their rule, they should have professed personal and private poverty. The Jesuits insisted on individual poverty but recommended the amassing of material wealth for the order to ensure the independence of their schools. In any case, the building of sumptuous churches was justified on the grounds that they were necessary in the evangelization effort, since they were the physical manifestation and the visual expression of God’s magnificence, and they could help substitute for the old deities. Regarding real estate and collecting tribute and riches, the Augustinians and Dominicans were allowed, as needed, to transgress the rule of poverty because doing so would benefit the secular population, which depended on ecclesiastical loans, and so the brothers could concentrate on their spiritual exercises and instruction of the faithful.
A Jesuit establishment could maintain itself for a time through alms and had the character of a residence. The school was unincorporated until rents could be obtained, but it could not be categorized as officially “founded” until it achieved a means to support itself in a “dignified” manner. Jesuit schools were opened at the request of the local inhabitants, who contributed to their upkeep. In cities such as Mexico City, Puebla, and Guadalajara, seminaries were founded where resident students could attend either that school or the Royal University. The founders of these schools received multiple indulgences in exchange for their donations: intercession for their souls after death, privileges for their descendants, recognition from the city that benefited from the donation, and the spiritual attention from the Jesuits.
Owing to the Jesuits’ late arrival, their initial goal of evangelizing the Indians was difficult, since the mendicant orders had distributed the territory among themselves. The neglect of the hinterlands was a subject of discussion until the last decade of the sixteenth century. Then the systematic advance north began. The first missionaries left from a school in Pátzcuaro, and they later ran their base of operation from a school in Durango. Each mission was run by one or two professed Jesuits, accompanied by a brother coadjutor. The Spanish Crown provided the economic support for the upkeep of the mission, whose success would result to a great extent on the system of reducción (a system of settlements comprised of converted Indians) imposed by the Jesuits. They attracted nomadic Indian tribes, gave them land, seeds, and agricultural implements, and made them sedentary. They taught them trades, organized their rural life, and promoted their products and trade.