They feel the silence. Only the sound of night insects that always accompanies in silence. Both Brandon and Remanu were silent. Brandon was busy with his thoughts while Remanu waited for Brandon to explain what he asked.
Brandon and the thoughts in his head were arguing with each other. Wrestle with each other as if looking for a deal. He was considering Remanu and something that the young man either had to remember or not.
Brandon remembered what Remanu had said earlier. That little story alone confused Brandon, especially when he says that Remanu recognizes Brandon because he looks a lot like his best friend. He was worried about the decision he should have taken at this time.