According to The Word Shaker, how did Hitler get the idea to rule the world with words?

The Word Shaker,

A man, apparently Hitler, decideds he would rule the world. One day he sees a mother scolding her child until he cries then minutes later speaking very softly to him until he smiles. The Fuhrer decides he will rule the world with words. He plants the seeds of words and symbols across his country and cultivates them. He beckons people with his freshly-picked words and places them on a conveyor belt, through which they are hypnotized with words and outfitted with symbols. The demand for his words becomes so great that people are hired to cultivate the massive forests of words; some, called "word shakers," are employed to climb the trees and throw the words to people below.

http://www.gradesaver.com/the-book-thief/study-guide/section9/