Shams Al-Maarif & Ghayat Al-Hakim
I suggest you to watch this. https://www.youtube.com/watch?v=kAzdgYl0-lQ
The book extends beyond the occult and is a powerful spiritual compendium. Ghamidi sahib himself has stated multiple times that in the past there were masters of the spiritual sciences. These people knew how to command and manipulate the hidden forces in the universe. And this book claims the very same. By saying the universe, the Quran, Fateha, and Bismillah are all related.