A snowflake is probably quite unconscious of forming a crystal, but what it does may be worth study even if we are willing to leave its inner mental processes alone.
Northrop FryeThe poet, however, uses these two crude, primitive, archaic forms of thought (simile and metaphor) in the most uninhibited way, because his job is not to describe nature, but to show you a world completely absorbed and possessed by the human mind.
Northrop Frye