Examples of common metaphors: http://examples.yourdictionary.com/metaphor-examples.html
Metaphors explanation: https://www.youtube.com/watch?v=E8zRP-kkNGk&t=2s
Metaphors in music: https://www.youtube.com/watch?v=kGXhUh4wkeE
https://www.youtube.com/watch?v=jN104uji--Y
Metaphors in movies: https://www.youtube.com/watch?v=ZqNv9AprJco