First, Grigori Grabovoi – I know he was a Russian philosopher and researcher who worked with numbers, especially in relation to healing and self-development, I think. He developed something called "Number Medicine" or "Sayilar Eczanesi" in Turkish, which translates to "Numbers Pharmacy." The book "Sayilar Eczanesi" is one of his works, probably compiling his research on numbers and their influence on health and consciousness.