Conversation so far:
What is the order of words meaning?
Frye argues, as an order of words, providing criticism with a conceptual framework and a body of knowledge derived not from an ideological system but rooted in the imagination itself.
Was Northrop Frye's  work praised?
His lasting reputation rests principally on the theory of literary criticism that he developed in Anatomy of Criticism (1957)
What contribution did Northrop Frye's work make to the literary world?
Frye's contributions to cultural and social criticism spanned a long career during which he earned widespread recognition and received many honours.
What is the skeleton to Northrop Frye?
a skeleton which allows the reader to respond imaginatively to any literary work by seeing it in the larger perspective provided by its literary and social contexts“

Question: Why are they helpful to understand?
Self-contained rewrite: Why are skeletons helpful to understand to Northrop Frye?