From the oldest myths to the latest revelations of the scholars, all of the written and spoken information about the void describe it as endless desolate space.
They say there's no light in the void, no sound, no air, and no time as well. A multitude of scholars even argue that void is not merely the absence of all that. There might not be any sound within the void but there's no surety that it's absolute silence as well.
There might not be any sense of time within the void but there's no certainty that it's absolute darkness as well.
Similarly, there might not be anything within the void but there's no surety that it's devoid of everything as well.
Therefore, the void can be seen as the end of space, time, causality, and destiny, something beyond the grasp of the human imagination itself. It might be a nonsensical feverish dream, it might not be anything. No one can be sure of it.