Here’s an interesting quote by Charles Haanel:

“Someone may ask: “How can the subconscious change conditions?”

The reply is, because the subconscious is a part of the Universal Mind and a part must be the same in kind and quality as the whole; the only difference is one of degree. The whole, as we know, is creative; in fact, it is the only creator there is; consequently we find that mind is creative, and as thought is the only activity which the mind possesses thought must necessarily be creative also.

But we shall find that there is a vast difference between simply thinking and directing our thought consciously, systematically and constructively; when we do this we place our mind in harmony with the Universal Mind, we come in tune with the Infinite, we set in operation the mightiest force in existence, the creative power of the Universal Mind.

This, as everything else, is governed by natural law, and this law is the “Law of Attraction,” which is that Mind is creative, and will automatically correlate with its object and bring it into manifestation.”