If you were building a new home for yourself, you know that you would be intensely interested in regard to the blueprint for your home; you would see to it that the builders conformed to the blueprint. You would watch the material and select only the best wood, steel, in fact, the best of everything. What about your mental blueprint for happiness and abundance? All your experiences and everything that enters into your life depend upon the nature of the mental building blocks which you use in the construction of your mental home.
If your blueprint is full of mental patterns of fear, worry, anxiety, or lack, and if you are despondent, doubtful, and cynical, then the texture of the mental material you are weaving into your mind will come forth as more toil, care, tension, anxiety, and limitation of all kinds.
The most fundamental and the most far reaching activity in life is that which you build into your mentality every waking hour. Your word is silent and invisible; nevertheless, it is real.
You are building your mental home all the time, and your thought and mental imagery represent your blueprint. Hour by hour, moment by moment, you can build radiant health, success, and happiness by the thoughts you think, the ideas which you harbor, the beliefs that you accept, and the scenes that you reherse in the hidden studio of your mind. This stately mansion, upon construction of which you are perpetually engaged, is your personality, your identity in this plane, your whole life story.
-- Dr. Joseph Murphy in "Power of Your Subconscious Mind"