Bhagavad Gita Chapter 12
PROCEDURE:
Let us discover the "Monkey Mind". Close your eyes and try to focus on an object or event. You will see that after a few seconds you can't continue. No thought or idea can remain in our inner space eternally. Immediately another thought that comes along to replace the last thought.
This is the inner chatter of our mind referred to as the 'monkey mind.' This chatter is the constant jumping of our mind between past and future. It is the journey that our mind undertakes between what it has experienced and stored as incomplete memories and the unknown, which is full of expectations and speculations, also based upon the past.