Mind twisting books pleaseee

Can I get some book suggestions where the books were mind blowing, otherworldly – not ET but not somthing that’s normal to the physical spiritual emotional world we live in, real psychological disorders or somthing like that, books about universal math, quantum physics, time travel, conspiracy, cosmos. (Not fiction) Science based, could also be based on scientific theories.

Also interested, in interesting reads like those by Carl Jung (I had to take breaks reading his work because of how in depth and mind boggling it was – I love books that make me feel like my mind is not enough to understand it), also philosophy, psychology based but deep, intellectual and really interesting.

Thank youuu 🙏
Feel free to include reviews or your experience whilst reading the book you suggested 🫢