It was the custom to return to Chambéri for the winter, and the day of their departure from Les Charmettes was always a day blurred and tearful for Rousseau; he never left it without kissing the ground, the trees, the flowers; he had to be torn away from it as from a loved companion. At the first melting of the winter snows they left their dungeon in Chambéri, and they never missed the earliest song of the nightingale. Many a joyful day of summer peace remained vivid in Rousseau's memory, and made a mixed heaven and hell for him long years after in the stifling dingy Paris street, and the raw and cheerless air of a Derbyshire winter.[100] "We started early in the morning," he says, describing one of these simple excursions on the day of St. Lewis, who was the very unconscious patron saint of Madame de Warens, "together and alone; I proposed that we should go and ramble about the side of the valley opposite to our own, which we had not yet visited. We sent our provisions on before us, for we were to be out all day. We went from hill to hill and wood to wood, sometimes in the sun and often in the shade, resting from time to time and forgetting ourselves for whole hours; chatting about ourselves, our union, our dear lot, and offering unheard prayers that it might last. All seemed to conspire for the bliss of this day. Rain had fallen a short time before; there was no dust, and the little streams were full; a light fresh breeze stirred the leaves, the air was pure, the horizon without a cloud, and the same serenity reigned in our own hearts. Our dinner was cooked in a peasant's cottage, and we shared it with his family. These Savoyards are such good souls! After dinner we sought shade under some tall trees, where, while I collected dry sticks for making our coffee, Maman amused herself by botanising among the bushes, and the expedition ended in transports of tenderness and effusion."[101] This is one of such days as the soul turns back to when the misery that stalks after us all has seized it, and a man is left to the sting and smart of the memory of irrecoverable things.