What is the art of living?

'Your concept in the mind that things should be a certain way causes pain in the mind. The cause of distress is set concepts in the mind. The art of living is to gain this simple ability in life - just a skill: the ability to free your mind of the past, to free your mind of future fears, and to be able to play with every situation that is in front of you'

- H. H. Sri Sri Ravi Shankar