Corey Green describes the process by which he devoted 14 years to determine his life purpose. Many people do not know how to determine their life purpose. We can learn from Corey and the process he employed to overcome his childhood and assess his life purpose in helping others through karate. While determining his life purpose, he developed the slogan: Believe in Yourself – I Already Do. There are two parts to this belief: Corey believes in himself, and he knows you can overcome any life challenges.