Answer: Metaphor if a person is speaking and comparing him/herself to fire-- perhaps an emotional state, or expressing an intention to light things up.
Personification if the fire is speaking. It may be a poetic, ceremonial speech.
"I am fire. I represent the passion and fervor of these candidates...."
Explanation:
Context helps to determine the interpretation of any figurative language.
I'm guessing the word that is italicized capacious because in this case it is synonymous with vast, meaning that he has a developed mind with broad views.
Need more details it could be him or them
