Even when a person has all of life's comforts - good food, good shelter, a companion - he or she can still become unhappy when encountering a tragic situation.
When I am in trouble, eating is the only thing that consoles me. Indeed, as any one who knows me intimately will tell you, I refuse everything except food and drink. At the present moment I am eating muffins because I am unhappy. Besides, I am particularly fond of muffins.