'The Surrender Experiment: My Journey into Life's Perfection' by 📝Michael Singer.
This was added to my 🏷️#reading-list when 📝Rob Sanchez said, in response to my thanking 📝Shar Ghoudsifar for recommending 📝The Untethered Soul in 📝Citizens of One, "Singer helped me grow tremendously as well. The Surrender Experiment is also highly recommended.