If you still aren't sure about how to find the main idea, check out this movie. Maybe it will say it differently and you'll understand it better.
Did you watch it? Do you understand what the main idea is now? If you do, read this funny comic! P.S. You won't think it's funny if you don't REALLY understand what the main idea is!
Moby has a main idea puzzle for you to solve! Are you up for the challenge?