This is a book arguing for the case that 'idealism' is the true nature of reality, not 'physicalism' - in other words, mind is more fundamental than matter. My own understanding is that there's no crucial evidence that these opposing views have been settled by science or philosophy or any other sphere of study. If you are persuaded by this book's argument I suggest you read 2 books by D. D. Hoffman 'the case against reality' and 'visual intelligence'.
Ever so gradually the Wheel of Fortune turns. Very ancient lessons need to be learned over and over again, even though their essence remains the same. Modern science can empower ever more of us to attain infinite vision, but only if the sum of it's knowledge includes that of successful 'dreamers' from aeons ago. In "The Idea of the World" Bernardo does an admirable job of weaving the most recent and rigorous science, psychology and philosophy into that intricate cloth of transcendence espoused by mystics since.... forever. If you wonder at Bernardo's technical erudition and ability to construct a cogent philosophical argument you might refer to the forty five (Kindle) pages of Bibliography. Materialists, wake up! smell the roses! it's all good!