By understanding eternity which is five things: namely, the Source of it all; – the Consciousness, which is our a life, awareness, within obviously the time space-time dimension; which means we take information incrementally, as well as we download and change incrementally; and the Interrelation both between the Divine, which is of-course the Torah, and the universe, as the Baal Shem Tov says: it is always messaging us good ideas and lessons – as well as the collective Growth of humanity