Imagine space to be without objects. Imagine that even you are not an object but somehow an experiencing mind or consciousness within such a reality. Whether you are moving or stationary you would not know. There would be no sense of space, and by extension no sense of time. In such an existence there would be no knowledge. You would not know even of your own non-physical existence.

Both space and time, as concepts, can only be understood with matter, their relationships, and their change in relationships.

We have a sense of self because of matter, inferred space and inferred time.