these laws were essential to the security of my body

Ta-Nehisi Coates wrote Between the World and Me as a letter to his son. He writes about coming into his body as a black man in the U.S. as a legacy story for his son who is now coming of age in his own body as a black man in the U.S. 

It is one of the most important books I've read as an American. I listened to the audiobook, read by the author. 

"To survive the neighborhoods and shield my body, I learned another language consisting of a basic complement of head nods and handshakes. I memorized a list of prohibited blocks. I learned the smell and feel of fighting weather. And I learned that "Shorty, can I see your bike?" was never a sincere question, and "Yo, you was messing with my cousin" was neither an earnest accusation nor a misunderstanding of the facts. These were the summonses that you answered with your left foot forward, your right foot back, your hands guarding your face, one slightly lower than the other, cocked like a hammer. Or they were answered by breaking out, ducking through alleys, cutting through backyards, then bounding through the door past your kid brother into your bedroom, pulling the tool out of your lambskin or from under your mattress or out of your Adidas shoebox, then calling up your own cousins (who really aren't) and returning to that same block, on that same day, and to that same crew, hollering out, "Yeah nigger, what's up now?" I recall learning these laws clearer than I recall learning my colors and shapes, because these laws were essential to the security of my body."  

- Ta-Nehisi Coates, Between the World and Me, 2015