In his or her own way, everyone I saw before me looked happy. Whether they were really happy or just looked it, I couldn't tell. But they did look happy on this pleasant early afternoon in late September, and because of that I felt a kind of loneliness new to me, as if I were the only one here who was not truly part of the scene.
The narrator observes a group of people who all appear to be happy during a pleasant September afternoon. This perception leads to a sense of isolation as he questions whether their happiness is genuine or simply a facade. Despite the cheerful atmosphere around him, he feels disconnected, suggesting an inner struggle with his own emotions amidst a joyful setting.
This moment highlights the narrator's introspection and the complexity of human emotions. While others seem to embody happiness effortlessly, he grapples with feelings of loneliness and detachment, indicating a deeper personal conflict. This contrast between external appearances and internal sentiments creates a poignant atmosphere within the narrative.