Like a double-edged knife, the creative mind cuts to the truth of self and the humanity of others.
The normal meaning of "cut" fits with the word "knife" but the whole meaning of sentence isn't clear.
So could you please explain it to me?
The fuller text:
Does being a good storyteller make you a good leader? Not necessarily, but if you understand the principles of storytelling, you probably have a good understanding of yourself and of human nature, and that tilts the odds in your favor. I can teach the formal principles of stories, but not to a person who hasn’t really lived. The art of storytelling takes intelligence, but it also demands a life experience that I’ve noted in gifted fi lm directors: the pain of childhood. Childhood trauma forces you into a kind of mild schizophrenia that makes you see life simultaneously in two ways: First, it’s direct, realtime experience, but at the same moment, your brain records it as material—material out of which you will create business ideas, science, or art. Like a double-edged knife, the creative mind cuts to the truth of self and the humanity of others.