How can we look understandingly into somebody's being? We should not condemn but understand the criminal's personality, understand the criminal and the saint equally well. Empathy for each and everyone is required and this is what is meant with higher, occult "listening".
Thus, if a person brings himself with strict self-control to the point of not evaluating his fellowman, or the rest of the world for that matter, according to his personal judgment, opinion and prejudice, and instead lets both work on him in silence, he has the chance to gain occult powers. Every moment during which a person becomes determined to refrain from thinking an evil thought about his fellowman is a moment gained.
A wise man can learn from a child. A simple-minded person can consider a wise man's utterances in like manner as a child's babblings, convinced that he is superior to a child and unaware of the practicality of wisdom. Only when he has learned to listen to the stammering of a babe as if it were a revelation, has he created within him power that wells forth from his soul.