When we study nature, we find that the growth of plants and the life of trees all depend upon balance. And when we think of the cosmos and study the condition of the stars and planets, the main thing we realize is that the one holds the other, thereby producing balance. All destruction caused in nature, such as volcanic eruptions, floods, earthquakes,...comes from lack of balance. As long as nature holds its balance, the abyss in the heart of the earth can remain as it is; people can walk over it without any damage. Storms and famine, all the difficult conditions caused by nature, show that balance is missing; all the different plagues that come to mankind are caused by the lack of that balance which is the security of the health of humanity.