Action develops in high speed, the characters of the main heroes or heroines are rich is color (often black or white), at the end of the chapters you literally are forced to turn the page.
The attention span of the readers is quite short, so the author has to seize every moment – the chance the person will actually read the book from start to finish isn‘t high at all.
So it‘s not surprising that the easiest to read are high action entertainment books, just as is to listen to fast tempo, brilliant and virtuosic organ compositions.
However, life-changing music often is like dramatic books – we can find themes of weird character, advanced and ambiguous forms, foreign and perhaps frightening harmonies.
Of course, we need entertainment. But if you want to have a glimpse deep in your eyes through music, choose something more complex – something which forces you to think.