If the Mind dwells upon the spiritual things, then it follows that it becomes what it has dwelt upon, what it has lived upon, what it has made itself a portion of.
But if the Mind dwells upon self-indulgences, self-aggrandizement, self-exaltation, selfishness in any of its forms, in any of its variations, then it has set itself at variance to that First Cause: and we have that entered in as from the beginning, that of making will--through the Mind--at variance to Creative Forces before it has come into the movements of matter that we know as physical, material.
EC262-78 (Edgar Cayce)