The Painted Veil by William Somerset Maugham

Walter did not come back to dinner that evening. Kitty waited for him a little, for when he was detained in the city he always managed to send her word, but at last she sat down. She made no more than a pretence of eating the many courses which the Chinese cook, with his regard for propriety notwithstanding pestilence and the difficulty of provisioning, invariably set before her; and then, sinking into the long rattan chair by the open window, surrendered herself to the beauty of the starry night. The silence rested her.

She did not try to read. Her thoughts floated upon the surface of her mind like little white clouds reflected on a still lake. She was too tired to seize upon one, follow it up and absorb herself in its attendant train. She wondered vaguely what there was for her in the various impressions which her conversations with the nuns had left upon her. It was singular that, though their way of life so profoundly moved her, the faith which occasioned it left her untouched. She could not envisage the possibility that she might at any time be captured by the ardour of belief. She gave a little sigh: perhaps it would make everything easier if that great white light should illuminate her soul. Once or twice she had had the desire to tell the Mother Superior of her unhappiness and its cause; but she dared not: she could not bear that this austere woman should think ill of her. To her what she had done would naturally seem a grievous sin. The odd thing was that she herself could not regard it as wicked so much as stupid and ugly.