“There are many ways to understand this. One simple way to know this is: today, if you lose your mental peace totally, you will go to a doctor. He will give you a pill. If you take this pill, your system will become peaceful. Maybe this will last just for a few hours, but you become peaceful. This pill is just a little bit of chemicals. These chemicals enter your system and make you peaceful. Or in other words, what you call peace is a certain kind of chemistry within you. Similarly, 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. Now 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.”

― Sadhguru, Encounter the Enlightened: Sadhguru, A Profound Mystic Of Our Times