Depression is a lot like that: slowly, over the years, the data will accumulate in your heart and mind, a computer program for total negativity will build into your system, making life feel more and more unbearale. But you won't even notice it coming on, thinking that it is somehow normal, something about getter older, about turning eight or about turning twelve or turning fifteeen, and then one day you realize that your entire life is just awful, not worth living, a horror and a black blot on the white terrain of human existence. One morning you wake up afraid you are going to live.