Miracles have ever been the most fruitful source of profit that the Church enjoys, for at the annunciation of every new miracle the faithful are quickened to devotion and to contributions, which, above all things, is to be desired by the "impoverished Church" of Mexico.[61] An earthquake is always a windfall or a godsend to the priesthood. An outsider is often surprised at the number of miracles that, in old times, were connected with earthquakes. But rarely do we hear of modern miracles. The spirit of miracles works only in times of most profound ignorance; and experience has convinced the Church that the only prospect of the continuation of miraculous visitations of the holy Apostles and of the Virgin in Mexico, depends upon the continuation of the people in the most profound ignorance, and in childlike obedience to their spiritual superiors. So long as this state of things continued, the holy Virgin was ever present among them, performing the most astounding cures, and even, upon one occasion, causing the ground to open and swallow up the surplus waters of the valley, to the relief of the "most devout people of Mexico," besides performing other astounding miracles, that have been duly attested by Pope, prelates, and the Council of Rites. But now, since the education of the common people has been attempted, although on a very limited scale, and men are allowed to speak openly, the most holy Virgin of Guadalupe has withdrawn her wonder-working power from an unbelieving people, while the blind, the halt, the lame, the palsied, and the diseased crowd around her shrine, not to obtain her healing mercy, but to solicit charity. The saints, also, have ceased to stir up the elements, so that volcanic fires have ceased throughout the whole limits of the republic, and earthquakes have almost forgotten to perform their annual duty of shaking the earth. The last volcanic eruption in Mexico was one of the most astounding of which the record has come down to us, whether in Mexico or in any other country. Fortunately, we have reliable evidence in relation to this event, for Humboldt not only surveyed the volcano as it appeared in his day, but, from eye-witnesses of the first eruption, learned the incidents that fill out the history, and also the miraculous cause which is assigned for this mighty convulsion of nature. His story I shall follow in preference to the popular tradition of the awful consequences that succeeded the curse pronounced by two Capuchin friars upon the estate of Jorullo.