Except therein lies the fail at logic:

An individual's shadow is an unconscious region of the psyche formed by the conscious contents of the ego.

Becoming conscious only creates more shadow.

So we are stuck looking behind the contents to the unseen which there is no method to get to, the logic follows this sequence who/what/where/when/why/how

We went through the whole part almost, but have never reached a how. Instead it's circular logic all around: Seek the shadow you cannot see but which upon seeing creates more shadow to seek. Contents create the shadow, Seeing the shadow creates Contents, creating more shadow.
Seeing the why: to work on parts of yourself, and no how.