Time—it's one of the limits of our present, physical existence (Ecclesiastes 3:18-20[18] I said in mine heart concerning the estate of the sons of men, that God might manifest them, and that they might see that they themselves are beasts. [19] For that which befalleth the sons of men befalleth beasts; even one thing befalleth them: as the one dieth, so dieth the other; yea, they have all one breath; so that a man hath no preeminence above a beast: for all is vanity. [20] All go unto one place; all are of the dust, and all turn to dust again.