We tend to gravitate towards our tribes; the challenge is to understand the people of other tribes.

If you went to the headwaters of most rivers of the United States, you'd have a wonderful naturalistic hike or trek, but you wouldn't find a shrine there. At the headwaters of the rivers of India, they are pilgrimage places.

There's still plenty of people who have this deep conviction that America is a Christian country and ought to say so in its Constitution, etc. But that's not the legal basis on which we're framed. So the flourishing of religion, of religious diversity, is really built into who we are.

I grew up going around with family, camping and living in a very beautiful mountain valley, knowing the names of the mountains and the rivers. I think it's no accident that I ended up studying the geography of India and knowing the names of the mountains and the rivers and all of that. I loved it. I think it gives a sense of space and a can-do-ness that was very powerful.

People get tired of talking about American exceptionalism, but I think this is an extraordinary thing about the United States, that we are a nation of immigrants, first of all, that is built upon a pluralistic society of native people that were here to begin with. The issue of diversity is really with us from the beginning.

Be prepared for changes.

I will say that the power of being a stranger in someone else's religious community has its own lessons, really. It is something like the power of visiting another very happy extended family and being at their table.