According to Osho, the blankness on the sannyas initiation paper is the core message: your name in a tiny corner is to be forgotten, while the vast empty space points to the sky-like truth of no-identity. Sannyas means becoming a blank page—dropping all labels and boundaries. Emptiness is the mystery and pointer; the written part is only a small ripple.
It reminds you to let go of your name and stories and be open and quiet like the sky.