You may want to search the PDF for his definition of mysticism, which usually resembles this thought:
The PDF version, which has circulated quietly on academic forums and file-sharing networks since the early 2000s, is a digital resurrection of these interwar lectures. It represents the moment when Crainic tried to answer a single question: Is Eastern spirituality merely ascetic practice, or is it a systematic science of direct union with the divine? Nichifor Crainic Cursurile De Mistica.pdf