What he opposes most stridently in this book is not religious doubt itself or attempts to understand religion as a
human construct or a biological phenomenon, but rather what he sees as a very artificial and
incomplete view of
human nature and its purpose: the very presumption that religion can be explained away as unnecessary and that such materialistic
perspectives could be definitive or anywhere near ultimately satisfactory for beings who are obviously designed to crave so much more than mere birth, death, and extinction.