That's what threw me off: "nothing" is not the same as "no thing". Space is "substance" but "substance" is the unmanifested and unconscious "no thing". It has no limits, parts, states, or dimensions, and contains "no thing".
Are you SURE about that? Think about it. Gravitational force is subject to distance between masses, but why? As in the article posted in this thread, there IS an interaction that we can't intuitively perceive between objects, and that interaction isn't plainly obvious in terms of manifested matter. There is no explanation for gravity, other than some invisible force created out of something that we don't yet quite understand. If you take the concept of space being something more that nothing, gravity becomes a force that is the result of the pressure exerted by space, electromagetism (and light) is simply a wave propagated through that medium, and the speed of light is simply the speed of propagation through that medium, such as the speed of sound is the speed of propagation through the medium of air...