Because of the limitations of wisdom, people can not correctly understand the laws of the universe, and do not know that there is a more complex world besides themselves. Therefore, the biggest mistake in life is to ignore the existence of heaven. If we compare the knowledge of heavenly way and natural science, one is to stand on the top of the mountain and look at the sea, the other is to put our head into the bucket and look at the water. The way of heaven is not only the way to recognize oneself, but also the way to recognize the Lord. People can only see the surface of things, and therefore there are many foolish thinking.