Different people may have different interpretations about something. This is normal because everything is open to multiple interpretations. So a photograph, a book, a movie, or anything else may have a meaning for me other than what it would mean to you. What is important is that everyone respects each other's interpretations and that these multiple interpretations generate a healthy debate about different ideas and thoughts.
Answer: Your teacher said at least five paragraphs. He doesn't techniclly mean that you have to write exactly five paragraphs. I would recommend at least 4 paragraphs. You have to write about your definition of bravery. It's really simple. Don't feel stressed out. I can write this in less than an hour. Try to write it on your own.
