In Tune with the Infinite or Fullness of Peace, Power, and Plenty by Ralph Waldo Trine.
Ralph Waldo Trine was a pioneer in the New Thought movement which led directly to the founding of The Law of Attraction and the bestselling phenomenon of The Secret.
In a nutshell, without In Tune with the Infinite, there is no Law of Attraction.
“Much is said in regard to “building castles in the air,” and one who is given to this building is not always looked upon with favor. But castles in the air are always necessary before we can have castles on the ground, before we can have castles in which to live. The trouble with the one who gives himself to building castles in the air is not that he builds them in the air, but that he does not go farther and actualize in life, in character, in material form, the castles he thus builds. He does a part of the work, a very necessary part; but another equally necessary part remains still undone.
There is in connection with the thought forces what we may term, the drawing power of mind, and the great law operating here is one with that great law of the universe, that like attracts like. We are continually attracting to us from both the seen and the unseen side of life, forces and conditions most akin to those of our own thoughts.”