The Way of all Flesh by Samuel Butler

Ernest had been ordained to a curacy in one of the central parts of London. He hardly knew anything of London yet, but his instincts drew him thither. The day after he was ordained he entered upon his duties -- feeling much as his father had done when he found himself boxed up in the carriage with Christina on the morning of his marriage. Before the first three days were over, he became aware that the light of the happiness which he had known during his four years at Cambridge had been extinguished, and he was appalled by the irrevocable nature of the step which he now felt that he had taken much too hurriedly.

The most charitable excuse that I can make for the vagaries which it will now be my duty to chronicle is that the shock of change consequent upon his becoming suddenly religious, being ordained and leaving Cambridge, had been too much for my hero, and had for the time thrown him off an equilibrium which was yet little supported by experience, and therefore as a matter of course unstable.