Also ayuso. Adverbs of old Castilian mean up and down. Before very seldom used. The monastery of San Millán de la Cogolla live Augustinian monks recoletos itself consists of two monasteries: St. Millán de Suso, above, in whose caves lived in the 6th century St. Millán and his fellow hermits. Currently nobody lives there. It is State-owned since the confiscation of Mendizábal. In San Millán de Yuso, which was built centuries later, now living the Augustinian Friars and it is international research center of Spanish.