There's a lot of terminology, like "washes whiter than snow," and these things which when they're said in a uniracial congregation, they just go fine. But when they're said in a mixed congregation, some people will get offended and wonder, "Why are you saying that? What are you saying?"

I see it happen in uniracial congregations all the time. But people - when they're in mixed company, we speak differently.

They could never go back to being a uniracial congregation again. It brings excitement. It brings life. It allows them to be able to know people they would never know, to meet people that are outside the congregation they would have never connected with, you know, through the networks that they developed in the congregation.

To a large extent, people's interest in the character is the mystery of the character.

We just say there are five, you know, racial groups in the US. I say that these folks are what we call a sixth American. There's something different. They are somebody who - they don't exist in any particular racial category, so they all feel it and they kind of congregate to each other.

What sort of difficulties would happen when people of different cultures try to come together to worship? Tiny little things such as let's tell jokes with each other.

We studied a mosque, and this is when we were at Notre Dame, and in this mosque they had people from a variety of countries, most of them immigrants. In some of the countries, when you go into a mosque you remove your shoes. To not do so could be punishable even by death in that nation. In other countries, it would be a great offense to remove their shoes when they come into the mosque, a sign of disrespect.