The Stranger- overview of Existentialism

"Maman died today. Or yesterday maybe, I don’t know. I got a telegram from the home: "Mother deceased. Funeral tomorrow. Faithfully yours." That doesn’t mean anything. Maybe it was yesterday"
In this quote, Meursualt (M.M.) explains that his mother has recently died, but doesn't go into depth about this. Rather he explains how absurd it is that he doesn't have the time of his mothers death. perhaps he is too preocupied, too much in the "now" to think about the fact that his mother has deceased.

  She said, "If you go slowly, you risk getting sunstroke. But if you go too fast, you work up a sweat and then catch a chill inside the church." She was right. There was no way out.
This quote vaguely foreshadows the death of M.M. but more importantly emphasizes the fact that death is inevitable and no human can escape it. The word "sunstroke" presented in the quote above helps morph the readers idea of the consequences there are for going "slowly". Although going fast now sounds reasonable, going to fast will give you a "chill". Humans usually get a "chill" either through cold air or unexpectedness. In this case unexpectedness occurs and gives one a chill because one day they're on earth, the next they are dead. To infer going slowly through life is painful, but to go through life to fast, you will catch a "chill" because you unexpectedly ended up dead.