Lucille,
'C-6' is the Sixth cervical Vertebra. If you feel the big lump at the base of your neck that sort of sticks out, it is the one right above that.
Being at that level means that Chastity can breathe, eat, talk and MAYBE even have some upper extremity motion, like being able to s-l-o-w-l-y type out messages on her computer. But as far as any type of strength goes, that would be limited. Her biceps probably work pretty well, but the triceps not so good. Also fine motor skills might be limited, such as putting on eyeliner or mascara.
definitely getting into lingerie by herself would be a problem.
I can only tell you that for me, using Dianetics as my method of 'self-discovery' seems to have removed the Obsessive/ compulsive portion of Cd'ing for me.
I no longer develope these all consuming thoughts of trying to figure out when or how I am going to get a chance to dress. This has lasted for 14 years, so in my mind it's rather permanent. I still dress, but only 3-4 times a year when I'm going out with my girlfriends or getting a chance to actually attend a support group meeting.
If nothing else, read the book 'dianetics', I found it to be quite fascinating and for me, at least, it works!
Hugs,
Lisa e