Poem of the man god
This link has some mp3 files of the book being read
the site has a lot more stuff, including this series on the centering prayer. this one is based on Carmelite spirituality not on the new age version.
The discipline is similar to "self hypnosis" or "Deep concentration"...if you concentrate on yourself you will find self. If you do it to get power over yourself or others, you will find that too along with the evil you are not seeking, but if you seek God, he will be there