Can Literature Replace God?

After reading All Things Shining: Reading the Western Classics to Find Meaning in a Secular Age, Arne De Boever wonders:

Is it really a religious, polytheistic mindset that is required to live the good life? Or might an imaginative, literary mindset suffice? (And what is the difference between the two?) If the question is not metaphysical (does God or do the gods exist?) but phenomenological (how will we respond to the world?), why would we hold on to the experience of the sacred that the authors try to capture? Literature might, in the end, be enough.