Maybe something like this?
During a rain storm, skies emit lightning.
This is most evidently a metaphor. The thing to keep in mind when analyzing literature/poetry is that if you see figurative language making comparisons/drawing parallels between two differing things--instances where the meaning is not literal such as how injustice is not really a fire and has no flames--it's a safe bet you'll have on your hands a metaphor.
Answer:
Deciding to study is an internal conflict because it is an inner struggle also known as man vs self. Another example of an internal conflict would be an emotional problem like anxiety or difficult decision making. External conflict is a struggle outside of yourself, such as, someone bullying you, or a snake in the wild. (man vs nature)
