The hexagram shows the lower trigram being decreased for the benefit of the upper, in that the third line, originally strong, has gone up, and the top line, originally weak, has taken its place. So the lower is decreased to meet the costs of the upper. But that is decrease pure and simple. If one reduces the foundation of a building and strengthens its upper walls, the whole loses firmness. In the same way, a decrease of the people's wealth for the benefit of the government is decrease pure and simple. And the whole drift of the hexagram is to point out how wealth can be shifted in this way without the sources of wealth among the people and the lower classes drying up as a result.