My answer will be "nothing" that hangs heavy in the air of concrete that swallows us whole. As you continue to bang your head against my walls of glass stone, remember "nothing" is where I live, Alone.
No weeping could persuade me nor begging nor force, to scream you are drowning will draw me out, of course, but only for a moment, my heart will always turn back, as I walk away with "nothing" , yet, I leave giving you even more.