Typesetter to river pilot, prospector, newspaper reporter, lecturer, author, publisher, businessman and family man.
It would most likely be in the sound category
Cause and effect would be the relationship occurring in this situation.
Tom Sawyer convinces Aunt Polly that dreams can hold truth when he told her that he had a dream about the night he went "missing" and she was sitting in her rocking chair and after she fell asleep he kissed her on the head. She later on found out that he was there the whole time and it was not a dream.