"Cassas is at the center of two tendencies represented by Ferreira Gullar (social poetry) and Nauro Machado (existentialism), similar to Murillo Mendes and Jorge de Lima. In this work, he searches for a reconciliation between the material and the spiritual world, mixing elevated tone with humor and meditation with puns. Irony prevails in his search for unity between his two loves: God and the world. Book is dedicated 'para aqueles que amam Deus e aqueles que amam o mundo.'"--Handbook of Latin American Studies, v. 58.