How does this dream reveal his inner conflicts?

I am assuming you're talking about the dream Beah has about his parents..... his family. In this dream he is home, but his family disappears, and suddenly he is surrounded by men drenched in blood. His family doesn't seem to notice, but Beah sees their deaths..... he bleeds for them and with them. When he runs back outside, his family is still there..... smiling From this, we can infer that Beah has been carry around the pains and guilt of losing them..... that he hasn't let go. We can also infer that this is his way of letting go..... of realizing they don't blame him for being alive.

I held my ears to stop hearing them, but I began to feel their pain. Each time a person was stabbed, I felt it worse; I saw the blood dripping from the same part of my body as that of the victim. I began to cry as the blood filled the room. The men disappeared and the door immediately opened, letting the blood out with a rush. I went outside with the blood all over me and saw my mother, father, older and younger brother. They were all smiling as if nothing had happened, as if we had been together all this time.