Control your thoughts is controlling your life

It is a metaphysical fact that for each minute of time we spend in thoughts of unfavorable impressions, unkind criticism, or hate toward any person, there will be hours of physical and mental suffering as a reaction. The first thing to do, then, in considering the relief of any mental or physical condition is to analyze your mental self over a period of time preceding the condition and discover what thoughts, attitudes, and conditions of mind you have held or expressed, and immediately eliminate this attitude by reversing your opinions, thoughts, and holding thoughts of love and kindness instead. In other words, the poison from the mind that has been eating at the very heart of every cell in your body must be eliminated before any treatment can be given to relieve the ultimate and outer manifestations. Any other process is merely treating the outer manifestations as though giving them a drug to nullify the senses without removing the actual cause.”
H. Spencer Lewis