If have no any combats,it is need not to have swords.If have no any wars,it is need not to have wooden oxen and gliding horses.If have no heartlessness of Heaven and the people that plunged into miseries,it is need not to call out wind,rain and also have no the neccessity to have a magic that can make the beans that scattered come into lots of soldiers. 
Human being born between heaven and earth.Live and die lonely,go and come alone,sadness and gladness even experienced by oneself.Have no anybody to substitute.Love is fruitless at all,what is the point of persisting?