Who is Billy?

I finally understood who is Billy. During the book I was suspicious of Billy and all the weird things that happened to him but now I get it, and many questions have been answered.

“Billy glanced dully at the coats of his neighbors. Their coats all had brass buttons or tinsel or piping or numbers or stripes or eagles or moons or stars dangling from them. They were soldiers’ coats, Billy was the only one who had a coat from a dead civilian. So it goes.” (Kurt Vonnecut. Slaughterhouse-Five. pg.82) cleared my mind. Billy is not a person, he is the representation of the characters. I understood it because when I read the passage, I understood that the soldiers were actually dead civilians. In other words, the men were dressed as soldiers but actually they were Billy, an agonizing person walking towards death with a coat that belongs to the underworld.

Having this on my mind know, I made the connection with the scene when the prisoners were on their way to the concentration camp during the train.
“Nearly everybody, seemingly, had an atrocity story of something Billy Pilgrim had done to him in sleep. Everybody told Billy Pilgrim to keep the hell away.
So Billy Pilgrim had to sleep standing up, or not asleep at all. And food had stopped coming in through the ventilators, and the days and nights were colder all the time.” (Kurt Vonnecut, Slaughterhouse-Five. Pg.79) In this scene Billy pilgrim was represents the mortified prisoners that couldn’t sleep and didn’t fit anywhere finding themselves far from home.
The same Billy is demonstrated in pg.80 when Kurt writes about the last words of Weary: “Who killed me?” he would ask.
And everybody knew the answer, which was this: “Billy Pilgrim.” Again, Billy didn’t kill Weary, he was only there to represent the despair he had to carry around that got him tire, out of the Three Musketeers and die.

So, who is Billy Pilgrim? This person is the compilation of all the real story of the characters in the scenes. He is how Kurt Vonnecut sees war, love, horrors, lies, despair, hate, and revenge. He is how Kurt Vonnecut sees humans.