Ilchi Lee is famous for gaining success in developing effective training techniques for the body, mind, and spirit that includes Brain Education in Dahn Yoga. The purpose of Brain Education is to encourage each and every individual worldwide to learn to control their brains and how to use it with great responsibility in order to achieve their goals as well as improve their way of living. Aside from that, Ilchi Lee education for peace which is the prayer for peace was also one of his masterpieces that were well appreciated by lots of people from around the world.
The Upanishads are a collection of texts of religious and philosophical nature, written in India probably between c. 800 BCE and c. 500 BCE, during a time when Indian society started to question the traditional Vedic religious order. Some people during this time decided to engage in the pursuit of spiritual progress, living as ascetic hermits, rejecting ordinary material concerns and giving up family life.