I always believed that faith is extremely detrimental to human life and is the pure negation of reason. On a lighter note I look at religion as an early form of old philosophy and the first attempts to explain the universe and give a coherent frame of reference to mans life and code of moral values. All this made by religion before men graduated or developed enough to have philosophy and as philosophies some religions have very valuable moral points. They may have a good influence or proper principles to infuse but in a very contradictory context and on a very dangerous or malevolent base/on the ground of faith.
I know I'm not saying anything original here but I like to make sense of my own thoughts.
In
Phenomenology of Spirit, Hegel sets out to demonstrate that reason/enlightenment actually only appears to be the pure negation of faith because it posits faith as its antithesis. Using the dialectical method that Hegel is now famous for, he shows, rather convincingly in my opinion, that faith and enlightenment are actually more closely related than reason would like to betray.
Terry Eagleton impressively explicates this paradoxical quandary in his book
Ideology: An Introduction (which I would recommend to anyone interested in these kinds of topics):
"The critique of ideology claims at once that certain forms of consciousness are false and that this falsity is somehow structural and necessary to a specific social order. The falsity of ideas, we might say, is part of the 'truth' of a whole material condition. But the theory which identifies this falsehood therefore undercuts itself at a stroke, exposing a situation which simply as a theory it is powerless to resolve. The critique of ideology, that is to say, is at the same moment the critique of the critique of ideology [i.e. the critique of itself]."
If enlightenment is spawned from the same material conditions that gave birth to religion, then any critique of the conditions upon which religion is based must also take into account a critique of those conditions as they gave birth to reason. In this light, enlightenment begins to emerge as merely another form of faith/ideology.
That said, I think even coming to this realization was a huge advancement in the history of Western thought. We seem now to be aware of the limits of our own critique; but how can we hope to conceive of some objective criticism of our material conditions when they are the very foundation of our thought?