Jesuit- and MIT-trained Quay (philosophy, Loyola U. Chicago) credits a Jewish atheist friend with prompting him to ponder the question: What accounts for the chasm between Christians' ideal spiritual path and the all too typical reality? While drawing upon social science perspectives in discussing themes such as original sin, recapitulation in Christ, and the Church as the new Israel, the author attributes the divide to the West's cultural regression from its religious roots. Indexed by scriptural citations as well as by author and subject. Annotation c. by Book News, Inc., Portland, Or.