Søren Kierkegaard was a Christian author who was against applying the ideas of the Scientific Enlightenment to Christianity. He lived in Denmark from 1813 to 1855. His works were written to the single individual who might be interested in reading them.
There is a tale that a man inspired by God once went out from the creaturely realms into the vast waste. There he wandered till he came to the gates of the mystery. He knocked. From within came the cry: ‘’What do you want here?” He said, ‘I have proclaimed your praise in the ears of mortals, but they were deaf to me. So I come to you that you yourself may hear me and reply.” “Turn back,” came the cry from within. “Here is no ear for you. I have sunk my hearing in the deafness of mortals.”
Soren wasn’t so afraid of sin as he was of the consequences for any individual, like his own father, who at 82 years old couldn’t forget what he had done 70 years earlier, and couldn’t believe he could be forgiven. As far as Regine goes he had good reasons to break off his engagement and explained them in his book Prefaces.
When a man jumps off a cliff, he doesn’t defy the law of gravitation; he merely illustrates it. Similarly, when a culture or a civilization jumps off a cliff, it doesn’t defy the ontological conditions which sanction it, or the nature of man, or the nature of God, or the nature of man’s destiny under God. It merely illustrates them. In short, at the point of crisis, our reasonings are thrust against the ultimate nature and meaning of things.