I suppose we all have moments where enlightenment comes to us, much like Buddha.
Another of my moments came when I was writing a #4 talk for the Ministry School. I gave probably 10 talks a year for 34 years. One evening as I was writing, it occurred to me that every talk I gave was the same. I would think up an opening illustration, carve up the the assigned material into the body, and end by applying the lesson to our "last days" situation. Every talk was spun into the same conclusion. Using this technique, I could mass produce completely passable student talks in about five minutes. It suddenly seemed very pointless.