In the Tip of the Writing Brush (Ofudesaki), it is said that we borrow our bodies from God. God lends us our bodies. It is said that we have autonomous control of the use of our minds. To a limited extent, since we have control of our minds, we have control of our bodies. That we do not have complete control of our bodies is emphasized when we get sick. Our thoughts continue, but the body may not respond. It is God who has the ultimate control of our bodies because the universe is the body of God.
Normally, when we borrow from someone, we try to take care of it and return it in good condition. It may be the same condition with our bodies; God may require us to take care of our bodies.
But what happen when we try to destroy what is being lent to us by God? What happens if we drink too much alcohol and drugs? What happens if we attempt suicide or homicide? What happens if we think evil? We will be destroying what God has lent us. We will be destroying part of God since the universe is the body of God.
The suffering of our bodies is never good whether it be from causality or from the actions of man. If we are to believe that the universe is the body of God, then God suffers from the evils of mankind. Only when these evils (greed, arrogance, and self love) are removed, will God become healthy, spirited and whole.