This is what I think the Buddha meant when saying that "one is the sum total of all that one has thought", yet from the perspective that the thinking verbalizing self is not the True Reality. When the deeper mind like a still lake clearly reflects the language of the Heart, then only are the extrovert capacities of the individual endowed with right minded thoughts, ideas and actions... the poetic and artistic expression that includes yet transcends the words and images that articulate it.
One can speak very positive words and yet feel and act totally different behind the scenes. A winning exterior does NOT ensure a happy and prosperous life. The harder and more compulsively you try "thinking the right thoughts" the more resistance is aroused from a repressed shadow part of the mind.
For all the above reasons, I believe that our use of words and language has but a superficial power and significance. One must discontinue the habit of giving them more importance than they are worth.
In Pure Being, Feeling & Seeing,