When you sense that certain negative thoughts are beginning to cloud your ‘sky’, weaken your faith and love, and dull your perception of the splendor of God , then it is time to concentrate and project rays of the utmost purity in the direction of these mists, and it will not be long before you see things becoming clearer, purer and brighter. It is by means of thought that you rise above the clouds. Thought is like a rocket or a beam of light. You can aim or focus it on a given point: the source of light, the eternal sun, your inner center, or the Lord himself, and within a few minutes it will pierce the clouds, however thick they may be, and you will find yourself up above, bathed in crystal-clear light.
Omraam Mikhael Aivanhov A New Earth