It is define as teaser. But, in same measure, it works as a simple story about self discover. And it works very well. A reclusive man. A package front to door containing a notebook. A clue. And a discover changing everything. Sure, nothing impressive but good kick for remind basic truths, small joys and the need to be more than your shadow. So, good job. Especially not ignoring the sender of package and the potential of parable with deep roots in Oriental tales.