Marcel Proust was long the object of a cult in which the main point of reading his great novel In Search of Lost Time was to find, with its narrator, a redemptive epiphany in a pastry and a cup of lime-blossom tea. We now live in less confident times, in ways that place great strain on the assumptions and beliefs that made those earlier readings possible. This has led to a new manner of reading Proust, against the grain. In Mirages and...