The Heart is all about love, passion, and emotion
Sometimes our love can be so intense that it turns into passionate anger or hatred -- we have seen throughout history how love for one's self, family, community, country, religion, or creed can become so passionate that it leads to anger, violence, and destruction.
For example, wanting world peace or peace for one's country too passionately may lead one to violence in the name of peace -- this seems rational in the heat of the moment but it only causes more chaos and hatred that will have to dealt with in the future -- and around and around we go...
When we remain balanced in our love and wanting for peace, then we can make decisions that ensure more love and peace are the result.
How is your heart today? Is it peaceful, passionate, or cold?