Re: empiricism
I think it's at least possible, and probably useful, to distinguish between "empiricism" in the sense tied to modern naturalistic methodology, and the root meaning of the word. Scientific empiricism emphasizes not only the idea that we learn something by practice and by experience (rather than Plato's anamnesis or remembrance), but also requires a methodology which involves quantification, objective measurement, repeatability of experiment, falsifiability, and etc.
Yet "spirituality" can be empirical in the first sense (that we learn by experience). Mysticism emphasizes experience at least in the sense that a transcendent imposes itself on our perceptions. The "revelation" of various religious traditions, that which is heard, is empirical in this non-scientific sense. Much of religious tradition emphasizes a practice, a knowledge gained from practice, which is the root meaning of εμπειρία, (empeiria; from which we get empirical) So I think from the theistic side of the debate, it might do more to confuse the issue than to clarify it to suggest that religion or spirituality rejects "empiricism" entirely. Rather I think there is a disagreement about the nature of experience and the faculties of experience and their referents. That is, a naturalistic anthropology might admit of two distinguishable human faculties, the senses and the reasoning mind, the processes of physical, sensible, perception, and rational reason. In the western traditions, theists speak of a third faculty, the "spirit", not that spiritual experience is entirely separate from the senses or from reason, but that there is an element in human perception that transcends them.