Figurative Language is a device that authors use to aid readers in determining what is occurring in a written piece such as through similes, metaphors or hyperboles so if its more of informative piece there would be no use in using figurative language.
Yea its a great thesis stamen make sure you have punctuation and vocabulary
He realizes that his heart is of gold and should move on with his life
1) Color
2) Wants
3) Uncertain
Hope this helps:)