How does Andre Gide use imagery in The Immoralist?

The author uses many literary techniques throughout the novel to help describe situations with more visual imagery. For example, when describing the passing of the days during the languorous summer he says that, "night melted into morning and the days were yoked to the days." Obviously nights do not melt and days cannot be yoked to each other but the visual image created helps to communicate the author's intent with more lyricism than a mere statement of fact. The author also uses similes as in the example of explaining how Michel can tell what Marceline is thinking by looking at her face when he says, "Just as a breath of wind sometimes ripples smooth water, the slightest emotion could be read on Marceline's face..."