Pathetic?

"It occurred to me that somehow I’d got through another Sunday, that Mother now was buried, and tomorrow I’d be going back to work as usual. Really, nothing in my life had changed." Before analyzing this passage in class, I thought this passage to be pathetic. Pathetic in a way that for most people in the world, the mother figure reflects: affection, warmth, and bottom-line love. Thus leads to the thought that such words from Monsieur Meursault formulate a man with no moral principle, a man full of depression. But once knowing the meaning of existentialism, such an assumption of a depressive human being can be postponed. Espeacially due to the following quote. 
"The sun was getting low and the whole room was flooded with a pleasant, mellow light." This quote labels the definition of existentialism. Monsieur  Meursault finds himself the night before the traditional funeral, mourning his mother in a ¨bleak white room...¨, with her companions from the nursing home. One would think that the feelings being expressed on such an occasion of mourning, would due gloomy, dark, full of sorrow. But the reader finds himself reading a totally different situation, the setting starts to be expresses. In very situation where Monsieur Meursault finds himself in ¨mourning¨, everything from the clothes of the people to the sky or light is described but nothing of sorrow is articulated. Meursault lives in only the present, he never laments the past, and only describes the exact presentation in where he is located. And very scarcely, the future is blathered.