According to Osho, emptiness is the feminine, via negativa value: a silent, womb-like openness that lets truth/Tao/God arrive on its own. By dropping will, effort, and methods, you become available; in that spacious receptivity, realization can happen instantly—a quantum leap beyond logic. Emptiness is not lack but inner space, the door through which unity reveals itself.
Being empty means relaxing and opening inside so life, truth, and insight can flow in without you forcing anything.