What is at the point of the spear? The edge of the knife? It is nothing.
Something, the metal, the material, what ever, sharpened to the point of nothingness. Behind the edge everything. Infront of the edge nothing.
And it is the more of nothing which makes the spear and the knife something.
Like our world: everything we see, the substance, the material. It is the nothing at the edge of the something. This nothingness makes our world everything!