The original concealment against which the revelation of true being is taken to be unconcealment cannot be thought as a contingency, like that dark side of something already extant in an illuminated clearing, as for example the moon. What does not choose to show itself may be contrary to all showing so that what emerges in light has been wrested from darkness in a singular event. What seems from here to be the background is in reality the deep, a black hole or a teeming chaos.