The Leftovers is a labyrinth of a show; watching each episode takes you down a series of tangled pathways toward never-ending thickets of spiritual, cultural, philosophical, and psychoanalytical interpretations of what we're seeing on-screen. This show is beautiful. But it's also confusing. Certainly, anyone who tries to parse the meaning of the closing moments of Sunday night's "Don't Be Ridiculous'" will struggle.