How to attain purity living this life? Shall we all go to the forest caves? What good would it do? If the mind is not under control, it is no use living in a cave because the same mind will bring all disturbances there. We will find twenty devils in the cave because all the devils are in the mind. If the mind is under control, we can have the cave anywhere, wherever we are.
It is our own mental attitude which makes the world what it is for us. Our thoughts make things beautiful, our thoughts make things ugly. The whole world is in our own minds. Learn to see things in the proper light. First, believe in this world — that there is meaning behind everything. Everything in the world is good, is holy and beautiful. If you see something evil, think that you are not understanding it in the right light. Throw the burden on yourselves! ... Whenever we are tempted to say that the world is going to the dogs, we ought to analyse ourselves, and we shall find that we have lost the faculty of seeing things as they are.
- Swami Vivekananda
Krishna - Delivered in California, on April 1, 1900