 He wrote a number of works to propagate the Catholic faith and also catechized others in ways contrary to the laws of the country.While serving as the pastor at a parish in Tecolotlán, he began to promote greater devotion to the Sacred Heart of Jesus through his preaching, his personal example, and his great devotion to the Eucharist.His fervency was so pronounced that he became known as the "Madman of the Sacred Heart."