In the quote from "A Farewell to Arms" by Ernest Hemingway, the author reflects on the contrasting nature of night and day. He suggests that night carries its own atmosphere, one that is distinct and often more challenging than the daylight hours. The things that happen at night, especially feelings of loneliness and despair, cannot be thoroughly understood or articulated in the brightness of day, as they belong to a different realm of experience.

Hemingway emphasizes the deep emotional struggles that can arise during the night, highlighting how loneliness can become particularly burdensome when darkness falls. The night, with its solitude and quiet, can amplify feelings of isolation, making it a daunting time for those who wrestle with their thoughts and emotions. Through this quote, he captures the essence of human experience, where the night serves as a backdrop for introspective challenges that daylight does not reveal.