My idea is that every specific body strives to become master over all space and to extend its force, its will to power, and to thrust back all that resists its extension. But it continually encounters similar efforts on the part of other bodies, other orbs of light, and ends by coming to an arrangement, a union, with those of them that are sufficiently related to it: thus they then conspire together for power. And the process goes on. If they cannot overpower the other, they push each other away. They return later and try again. And the process goes on.