Whatever book seems to call your name.
Thinking and Destiny by Harold W. Percival
Journey to Ixtlan by Carlos Casteneda
Death by Sadhguru
Cleanse to Heal by Anthony Williams
Tales of Power by Carlos Castendeda
Artificial Intelligence Dangers to Humanity by Cyrus A. Parsa
The Divine Pymander by Hermes Trismegistus
The Republic
by Plato
Karma by Sadhguru