steward's blog: "steward's Introduction to Witchcraft"

That's silly fancy language. We're human. And we have spirits. The two are connected, but just because our spirits / souls / whatever are near-perfect doesn't erase our humanity, which is quite imperfect. We get sick, in the body and mind. (Some say in the soul... but, at worst, it's either a mind-sickness or a refusal to listen to our personal spirit.) 

The Craft (and other practices, such as Reiki) can help ameliorate some of that... but it's not just, as Severus Snape would put it, "silly wand waving." First you need to learn how to access the power of Witchcraft (some access it innately, but often in a way that doesn't last too long), and then build it up - just like any other endeavor (such as how to get the Fubar crown :) .) 

The Apple meditation I mentioned in the first post of this blog is a fairly fast introduction for noticeable results - or at least it worked for me. YMMV.