But one of the great disappointments of esoteric practice is that discovering reality is your own creation does not give you the power to change it permanently. However much physics you read, however many mystical writings you study, the world remains stubbornly solid. In theory, you should be able to build your next home by thinking it into existence. In practice, you still have to lay the bricks like anybody else.

p. 34 - Magical Use of Thought Forms (2001)