As far as I can tell, this is a series of melancholic vignettes which at the end amount to a melancholic (if not outright depressing) conclusion. Is this film supposed to express something about the fleeting nature of reality ("dust in the wind")? If so, I think there was no need for such a long story, because all the scenes had that same uncertain quality from the very beginning. There was no progress, no added depth; the film only kept adding misfortune upon misfortune and then it just ended. A City of Sadness has a very similar style and mood, but it uses it to explore and comment on society and its complexities, offering multiple perspectives and personalities on the way. I've seen some people compare this movie to Ozu and De Sica, but I think that's just focusing on the form and not the content. Whereas here Hsiao-Hsien remains distant and somewhat indifferent to its subject, Ozu is profoundly emotional and De Sica is greatly socially committed.