I think that poetry is often a figure of thought. Lofty words that describe realms other than just the physical are used to convey emotion.
Though words relate back to the physical, they are often written with spiritual words. Sometimes, feelings are personified. It is understood that the author is not being literal, because that would be impossible in this situation.
I find figures of thought intriguing and beautiful to read. I like having to think about what I read, rather than having it spelled out for me in no uncertain terms.