What you call joy, what you call love, what you call suffering, what you call misery, what you call fear, every human experience that you go through, has a chemical basis within you. The spiritual process is just to create the right kind of chemistry, where you are naturally peaceful, naturally joyous. When you are joyous by your own nature, when you don't have to do anything to be happy, then the very dimension of your life, the very way you perceive and express yourself in the world will change. The very way you experience your life will change.