Really, this is terribly written. I don't mean the English is particularly poor (although there are chapters translated into English and that may be a contributing factor), but rather that each article is filled with alternatively terse supposedly witty observations or verbose convoluted jargon filled comment. Who is this written for? Well, the only conclusion is that the authors were trying to impress each other with their cleverness. This is typical of academic writing and more the pity because we (the actual readers interested in 'Christian Spirituality) desperately need expertise to draw out and EXPLAIN lost and hidden mysteries.
Nevertheless between the snobbish lines, there are elements of insight and explanation in the topics chosen. Perhaps the editor deserves credit here for choosing topics to be addressed, but certainly not for the content produced under these headings?!? It is possible to get some value from most of the chapters and slightly to grow in knowledge of this period, but it could have been so very much more than it is.
Furthermore not all the articles are even correct, rather there is far too much trying to twist originality out of nothing - in other words making up a story. And a story that is wholly secular rather than actually spiritual!
Naturally (although perversely) also academics struggle to understand the difference between theology and spirituality and too often find themselves falling into theology by mistake. Chapter after chapter there is failure to truly address what spirituality meant for Christians in this era. Just one example, despite the overall heading, there is no attempt to grasp and explore one of the essentials of Christian spirituality being the idea of individual salvation.
Another big criticism is the division into Eastern and Western Christianity - well really this is misleading because both are dealing with exclusively west of Jerusalem. There is no regard given for true Eastern Spirituality - Assyria and elsewhere. Truly if the geographic divide is relevant which the book seems to assume, then why is this exclusively a history of Christianity within the boundaries of the former Roman Empire? Don't then call it 'Christian Spirituality'.
With this type of writing where academics try to prove their own cleverness through the use of jargon and sophistication of phrase, there is a crying need for a glossary of technical terms used. If they are going to write like this then people should at least be able to determine what the are actually talking about! I'm out of my depth quickly with the range of spiritual issue, personalities and ecclesiastical concepts discussed here, but at least I have decent grounding in both history and theology and was looking to be further educated - however this book fails on that count.