Seekers are always told, “If you want to get rid of something, say that it is outside.” This is only an impression, but it is easier to get rid of a difficulty if you have the impression that it is outside you. However, I have just told you the opposite, that if nothing “in you” answers to the hostile forces, they will never attack you. Therefore, what is inside is also outside and what is outside is also inside! The secret lies in knowing how to place it just where it is most convenient for the immediate action.
Ref: Questions and Answers 1950 – 1951