Perhaps even much more grief. It is all came from you inner mind. To be sad, happy, agressive, desperlate. It is all came from you inner mind. God is in your heart.
People are often unreasonable, illogica, and self centered.
Forgive them anyway. People may cheat you. Be honest and frank anyway. The good you do today, people will often forget tomorrow. They said that if you are able to control your mind then you will be able to control the world.