Introduction by Robert Langdon For years, I studied symbols carved in stone and painted on canvas—halos, infinity knots, spirals of light—thinking they were metaphors for human longing. But in Prague, amid shadows of the Threshold Project, I began to wonder: what if these symbols were not metaphors at all, but messages?The Secret of Secrets asked the oldest … [Read more...] about What Awaits Beyond Death? The Secret of Secrets