I read quite a bit of Tozer. I really enjoy him. I have seen his use of mystics before (and I really appreciated your article bringing some of that out). My one issue, and this is not just with your article, is this:
I think we have become very scared of the mystical (if I may be allowed to use that word) movement of God in our lives. We've turned Christianity into an intellectual pursuit with no "experience" required, and most of the time, experience being looked down upon. This is a quote from The Reformation Study Bible ESV, page 1708:
Christianity is neither a common confession to the exclusion of individual experience, nor a private piety without corporate vision.
I think a lot of times, that is what Tozer is getting at. He's trying to make the modern church (of his day and our's) aware that there is more to Christianity than just head knowledge, as the BIble is clear to teach on many occaisions.
SOrry if I am off topic <img src="/forum/images/graemlins/sorry.gif" alt="" />