Submitted by YakOdd8893 t3_yl9w7a in books
For me it was Rosencrantz and Guildenstern are Dead (play ik) because it lead me to question (for over a year and half) whether I had ever made a choice in my entire life. I am just starting to believe again that I have free will and the power to make conscious choices. Curious to see which other books caused reality to crumble to the ground upon finishing.