remorse is feeling apologetic for your actions, on purpose or otherwise. an apology is taking accountability for your actions. If an apology starts with "I'm sorry but" it lacks accountability therefore is not a sincere apology
The speech is very focued, he seems to have his mind set to it, the tone relates to this situation in the text because they are talking about before death, and he is saying how he wants to stay the same when he dies like his body would stay the same.
