For Dina Kaplan, Labor Day weekend means camping out in the Nevada desert among 60,000 of her newly minted besties, finding her Zen among sunrise meditation sessions, outrageous costumes and a commitment to “human decency” at the annual, anything-goes Burning Man festival. “They give you water if you’re thirsty and feed you if you’re hungry,” says Kaplan, a five-time veteran of the festival and a West Village-based entrepreneur and yoga enthusiast who declines to give her age. “Some people will dance for 18 straight hours.” But today, she’s finding it difficult to readjust to the real world as she returns...