Do you address the subluxation, or the person with the subluxation?
The mechanistic, allopathic approach is to largely ignore the person or circumstances that created the "it" in favor of addressing the "it." But most "its," whether subluxations, tumors, infections or indigestion are merely symptoms of something else. If DC is to stand for Doctor of Cause, you'll want to lose your infatuation with the spine and expand your attention to the overall person.
Messy business, this commitment to cause.
Don't be misled into thinking you have to fix the cause. It's likely that you'll be unable to fix most causes. Are you okay with that?
Instead, have the courage to ask questions (and listen to their answers!) in such a way as to help patients connect the dots between their life and their health. It could be a significantly more powerful adjustment than anything you do to their spine.