The anthology was originally planned to contain 30 poems, but only 15 could be published, due to criticism describing the works as too difficult to understand.

It is generally accepted that this is meant to further the themes of anxiety and fear that the poetry deals with, as crows are traditionally associated with misfortune or are considered to be harbingers of death.

Violating the basic code of such grammar implies the poet's rebellion and disobedience to the symbolic power of the world, and the desire for aesthetic freedom.

The thirteen people who lost their sense of life and direction are self-portraits of his nation and their own image.

[5] The problem relating to this poem was presented on College Scholastic Ability Test (South Korea) 2003.