illustrious disciple, San Juan de la Cruz, escaped prosecution, though repeatedly denounced to the Inquisition, and his writings were not forbidden, but he was most vindictively persecuted as an Alumbrado, first by his unreformed Carmelite brethren and then by the Barefooted Order, and he ended his days in disgrace, recluded in a convent in the Sierra Morena.[45] Yet Francisco de Osuna, the preceptor of Santa Teresa, although his writings are of the highest mysticism, escaped persecution himself, and his _Abecedario Spiritual_ incurred only a single expurgation.[46] The Venerable Luis de Granada was not canonized, for the proceedings were never completed. He was one of the most moderate of those who taught the supreme virtues of _recojimiento_ and his _Guia de Pecadores_ ranks as one of the Spanish classics, yet his works were prohibited in the Index of 1559.[47] Melchor Cano declared that his books contained doctrines of Alumbrados and matters contrary to the faith, while Fray Alonso de la Fuente, who was a vigorous persecutor of illuminism, endeavored to have him prosecuted and pronounced his _De la Oracion_ the worst of the books which presented these errors so subtly that only the initiated could discover them. It illustrates the difference between Spanish and Roman standards, at this period, that his writings were translated and freely current in many languages and that, in 1582, Gregory XIII wrote to him eulogizing them in the most exuberant terms and urging him to continue his labors for the curing of the infirm, the strengthening of the weak, the comfort of the strong and the glory of both Churches, the militant and the triumphant. When he died, in 1588, it was in the odor of sanctity, and he subsequently appeared to a devotee arrayed in a cloak of glory, glittering with innumerable stars, which were the souls of those saved by his writings.[48]