I have been researching the Cosmic Forces technique----the technique was based upon Huna (David St Clair mentioned this a little in his Chapter "The Little Man" in
"Instant ESP"). Great books on Huna techniques:

Charlotte Berney "Hawaiian Mysticism"

Maxwell Freedom Long -- "Secret Science at Work" & "Secret Science of Miracles"(this the man who introduced and named "Huna" which means "secret". He has a numerous line of great books).

Other books (I was sad about this) are out of print:

"Clearing Your Lifepath with Kahuna Wisdom" by Allan P Lewis (shows you step by step Huna techniques).

"Hawaiian Magic" by Clark Wilkerson

I am currently reading "Hawaiian Mysticism" by Charlotte Berney...this book is highly recommended by those who have read it on Amazon and other book sites.