The law of cause and effect is difficult to realize because of the long time lapse between cause and effect. It is said that by accepting our sincere prayer, God will begin to shorten this lapse between the cause and effect. In the Tip of the Writing Brush is written:

Until today, whatever wrongdoing there is said to be, perhaps none of you has known of it on your body. 8-41

This mind, God will truly let you know. Everybody, wherever, ponder over it. 8-42

By placing illness on your bodies, God will let you know what evils (greed, arrogance, and self love) exist in your minds. When one ponders over the illness, and eliminate evil, then God will take back the illness. This process of the purification of the mind (God’s blessing) will bring only joy in the future (the law of cause and effect).