Recently, on the day of Diwali, I walked barefoot with my grandparents into the largest Hindu temple outside of Asia.
The BAPS Shri Swaminarayan Mandir—set on a 180-acre lot in Robbinsville, New Jersey—opened about a month ago. It’s made of more than 1.9 million cubic feet of off-white stone, and its spire rises 191 feet. It’s stunning.
There are a litt…

