William Atkinson 
Mental Alchemy [EPUB ebook] 

There is Mind in everything, and everything is in Mind.
Consequently, just as Thoughts become Things in the Cosmic Brain, so is it possible for a strongly concentrated and focalized Mind (Will) to materialize into objective form things and conditions on the material plane. Just as the Cosmic Will manifests the Cosmic activities and forms, so may the Individual Will materialize activities and forms on its own plane.