British pastor Geoff Thomas tells about an amusing event that occurred sometime back at Bryan College in Dayton, Tennessee. A gifted preacher, Al Martin was preaching in the main auditorium of the college for a special conference, and the congregation was completely absorbed by what they were hearing. Then toward the end of the sermon, all the lights in the place went out. Now that’s not too unusual. All kinds of things can cause power failures. But you might be interested in what caused this interruption. It could only happen in a high tech world.

It seems that a trigger mechanism, a kind of sensor, had been connected to the main light switch of the auditorium. The purpose of this mechanism was to conserve energy. The sensor caused the lights in the room to automatically be extinguished …