Read the given passage carefully. Answer the questions based on the information provided in the passage. Passage: An elder sister came to visit her younger sister in the country. The elder was married to a tradesman in town, the younger to a peasant in the village. As the sisters sat over their tea talking, the elder began to boast of the advantages of town life, saying how comfortably they lived there and how well they dressed, What fine clothes wore, what good things they ate and drank ,and how she went to the theatre, promenades and entertainments. The younger sister was piqued, and turned disparaged the life of a tradesman, and stood up for that of a peasant. "I would not change my way of life for yours," said she. "We may live roughly, but at least we are free from anxiety. You live in better style than we do, but though you often earn more than you need, you are very likely to lose all you have. You know the proverb, 'Loss and gain are brothers twain.' It often happens that people who are wealthy one day are begging their bread the next. Our way is safer. Though a peasant's life is not a fat one, it is a long one. We shall never grow rich, but we shall always have enough to eat. The elder sister said sneeringly: "Enough? Yes, if you like to share with the pigs and the calves! What do you know of the elegance of manners? However much your goodman may slave, you will die as you are living - on a dung heap - and your children the same." "Well, what of that?" replied the younger, "Of course our work is rough and coarse. But, on the other hand, it is sure, and we need not bow to anyone. But you, in your towns, are surrounded by temptations; today all may be right, but tomorrow the Evil one may tempt your husband with cards, wine, or women, and all will go to ruin. Don't such things happen often enough?"

"Though a peasant's life is not a fat one, it is a long one." What does fat and long, underlined in this sentence respectively mean in the light of the entire passage?