When you see people circling the Ka'aba it may look like a swarm, a school of fish, a galaxy swirling its way counterclockwise ... just because. From overhead it's a maelstrom that never sinks into the sea. It's a powerful, living organism, a community of Babel, in which individuals experience communion with "the other."
Since the genesis of my divinity school career, I have spent more Sundays in the comfort of my bedroom than listening to sermons in stiff-backed pews. This routine is less rebellion than it is the setting aside of time for another important act of worship in my life: the leisurely consumption of coffee.
In recent years, flash mobs have appeared in shopping malls, and surprised people by singing the "Hallelujah Chorus" from Handel's Messiah. These eruptions of song appear to be spontaneous -- they are surprising and inspiring, bringing worship into the middle of typically secular spaces. The book of Revelation is full of surprises.