Throughout the horrors of his captivity, Wiesel states that he needed to be strong for his father. He needed to survive for his father. After his father's death, he no longer feels as though he has anything to live for. It can be assumed that he no longer paid attention to the world around him. His lack of detail about that is due to the fact that he no longer cared about what was going on.
A good topic sentence is very clear, focused on the topic, directly relates the thesis, summarizes the main points of that paragraph, and strongly supports a claim.
Mines can cause the ground to cave in.
It’s true! Impious usually means wicked or profane or not showing respect or reverence!