Don't take any degree of photographic knowledge for granted. I remember what a revelation it was when I was taught the relationship between f-stops and shutter speeds and how they can be manipulated to to keep exposure constant while affecting DOF and the "freezing of action." I thought it the coolest thing in the world at that moment and felt inspired to explore the possibilities immediately.

I guess what I'm saying is, focus on inspiration, vision, etc... is fine and all that, but I wouldn't ignore the basics in the first session. They, too, can be inspirational.