A 'second religiousness' will precede the fall of western civilization.

Oswald Spengler : Author
Now, amidst all the chaos of the times, there comes a "second religiosity"; a longing return to the old symbols of the faith of the culture. Fortified thus, the masses in a kind of resigned contentment bury their souls and their efforts into the soil from which they and their culture sprang, and against this background the dying of the Culture and the civilization it created is played out.

Spengler, Oswald. The Decline of the West (Vol. 1, "Form and Actuality"; Vol. 2, "Perspectives of World History"). New York: Alfred A. Knopf, 1926 and 1928.