In chapter 2 explain what Ishmael means when he says, “these days I live in three worlds…” what does that have to do with flashbacks he describes in the chapter?

In this quotation Ismael has had a bad dream while living in New York City. He has been through rehab for soldiers but still has PTSD. Although the present may be free from immediate danger, the trauma is embedded in his soul. Beah is triggered by many things that give him flashbacks to the war and it will probably be this way for the rest of his life.