Figurative language: uses different figures of speech such as hyperbole, simile, onomatopoeia, metaphor among others.
In this sentence: The writer uses a metaphor and imagery . The horse represents courage, vitality, control. The color white, purity, trust. Flood, fill out beyond limits
To change this sentence into indirect speech, it would become "Mbali asked if she should go to church."
Hope this helps!
P.S. There are many different ways to change this sentence into indirect speech. My answer may not be word-for-word correct, but if you change i tup a little bit I'm sure it will work! :D