As one gets older being sad and miserable can become a bit of a habit. To counteract this, she suggests making a point of savoring such things as the tastiness of a piece of fruit, or other small things we might have been prone to overlook during our younger, busier days.
Rumer Goddenif you think you know, you don't ask questions, or if you ask, you don't listen to the answers. Everyone, everything, each thing, is different, so that it isn't safe to know. You - you have to grope.
Rumer Godden