Slaughterhouse-five #2

In my second blog for Slaughterhouse-five written by Mr. Vonnegut, I would like to discuss some topics that I briefly tipped off on in the first blog. First off, I'd like to point towards some repetition that I found and continually find more and more interesting as I read on in the book. One phrase that I continually see repeated is the phrase "So it goes" repeated over and over. I'll come back to the origin of the phrase in a later blog but as for now I'd like to discuss it's meaning and significance. I see it most commonly used after the death of a person, or thing really, that has perished in the eyes of a human. This must play some sort of significance for the stance that Vonnegut is portraying to the reader.
As of now, I'm not entirely clear on what Mr. Vonnegut's stance is towards war, but this continual use of the phrase makes me truly wonder what it is that fuels Mr. Vonnegut's use of "So it goes."  I wonder if it has to do with this concept that I have come up with after reading some ways into the book that death/perishing is unavoidable. Maybe because Billy has seen so much death and destruction he has become desensitized to the reality that at some point or another. I find that this makes so much sense to me because of the hallucinating and out of this world experiences that Billy Pilgrim is enduring. I started thinking along these lines when I read on page 43 that, "His attention began to swing grandly through the full arc of his life, passing into death, which was violent light,"(43) which gives me the idea that time and lifespan don't mean much to one that is continually moving from place to place within his own past, present, and future.