It's a series of melancholy musings on the relationship between one's career and identity/self-worth in the context of a society like ours, told through the lens of a) the author's personal career experience and b) fairytales.

My takeaway, if I had to reduce it to one (it doesn't really want to be reduced like that), is that many careers in our society consist of jumping through a series of arbitrary and ultimately pointless hoops, in order to eke out some kind of feeling of identity or personal worth. For the people who fail these challenges, there is no story. They lose their story, in some sense, unless they reframe it around something different. The author is able to be aware of this state of affairs despite remaining subject to it on some level.