The Spiritual in art

I worked at the Museum of Contemporary Art in Chicago shortly after this exhibition closed, and this book has had an effect on me ever since I was selling the exhibition catalogue back in 1989. I have never owned a copy, but was always mystified by the complexity of the articles, ranging from Blavatsky to every kind of Oriental Mysticism and Russian occultism and mathematical speculations about the universe, as well as every intellectual art trend from the late 1890's to the early 20C. I have been wanting to read this book for 30 years...It is a profound book, I just haven't grown up enough to read it yet.