The Early Sessions, Book 7

"Now listen to me. When you find yourself facing such negative images in your mind and projecting them into the future, you should at once mentally wipe out that image and replace it with a constructive image, seeing yourself, for example, sitting in command of a well-ordered room. This must be done immediately and upon every such occasion and under every such circumstance. This exercise will indeed wipe out the previous negative image."

Session 332, Page 333