Available in PDF, epub, and Kindle ebook. This book has 96 pages in the PDF version, and was originally published in 1922.
This is Evelyn Underhill's translation of the medieval spiritual guidebook called The Cloud of Unknowing, written by an anonymous English monk. At the core is a mystical approach to Christian prayer, in which God is found not through rote knowledge, but through 'blind love.' It has been described as Christianity with a Zen outlook.
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