I second the G.I. Gurdjieff recommendation, but maybe start with any one of the books of "Psychological commentaries" by Nicoll, or "In search of the miraculous" by Ouspensky.
It happened to me by chance. But I was seeking it. I think the journey has just started for me. It has its own challenges. But waking up with Sam Harris is probably a good place to start. I don't think it's also for everyone. Life became easy day to day but became more challenging in terms of purpose etc as ego dies.