straight up through the stars, through the constellations. From how far away does your imagination fill your inner eyes? What's just beyond what your imagination sees?
Now look down, between your toes, and use your mind to envision what lies below. But which direction is below, since up and down are merely arbitrary relations to a ball of rocks, gas, and energy? If the world were to disintegrate, you would not fall in any direction. Instead, you'd be merely floating upon the vast sea of nothingness, lost in your imagination. Think about what it would be like to not fall, to merely float away, no force acting upon you, nothing to grab onto.
And that's all the earth really is, something to grab onto as we collectively float through the universe and collide with various other floating objects, oblivious to anything but relative subjectiveness.