I completely agree with what Sellers has been telling us about insight. In my opinion the one thing that is than story with no point is a story that is preachy. You can still read a pointless story for enjoyment. However, I don't know anyone that really enjoys being preached at. The only thing that preaching is really good for is making people feel bad about themselves. I think that it is much better for a reader to find little pieces of wisdom throughout the piece.
I also think that the best bits of insight in a story can be the things that each individual reader takes away from the story. I think that each reader can look at a story and take a completely different meaning or lesson from it. Those meanings come from each individual's life experiences and there is no way for the author to be able to purposely put those in. I guess people find those meanings in moments in the story that show something real, but without any preconceived meanings. I think that good writing can create the opportunities for those moments and the best authors are able to write those moments.