Is this what Jesus told you guys to do?

I just finished reading a book called, Jim And Casper Go To Church. It's a book where Jim, previously a pastor, pays Matt Casper, an atheist, to go to church with him. Casper, as he's refered to in the book, has been hired by Jim to go with Jim to churches all over the country and to give his honest impression of the experiences to Jim.

Casper has a lot of interesting perspective on many of the common things that happen in a typical worship service. One of the questions that he asks over and over again is, "Is this what Jesus told you guys to do?" He often asks this question in response to large waterfalls in the entryway, or big fog machines in a stadium, of cameras on cranes and things of that nature. It certainly is an interesting question coming from an atheist. But in many ways I think that makes the question even more relevant.

What is it that Jesus told us to do? How does what we do in a worship service correlate with what Jesus told us to do?

And no, I'm not answering either of those questions for you. I'm interested to hear your thoughts first, then I'll put my two cents into the conversation.