What does Tausolo keep seeing in his dreams at night and sometimes in the daytime in Chapter 3 and what does he realize about what he sees?

Tausolo keeps dreaming about Harrelson, and he thinks that Harrelson is asking him why Tausolo did not save him. Sometimes Tausolo sees Harrelson for an instant in the daytime. He seems to see Harrelson from a distance of close up. Harrelson is always asking why Tausolo did not save him as he burns to death. Tausolo knows that the person asking that question is really himself.