Why is it many religious men pray for enlightenment and?

turn their back on the answers that the world gives them? i mean i have met many Christians who are afraid to even ponder Buddha's teachings as if it would betray their religion. i have met many who do not read the ancient philosophers because of their pagan beliefs. i have met many who are afraid to even look at science that contradicts their belief systems... why do men pray for enlightenment if they are only going to ignore that which does not fit in with their beliefs?