"As they flew along, he pointed out to Sita various landmarks that he had crossed during his campaign, and when they crossed the northern portals of Lanka he pointed out to her the spot far below where Ravana had finally fallen," (166).



This symbolized crossing the threshold because he crosses over the point where his journey met its end. The fact that he is flying high above the scene shows the distance that he has already placed between himself and his defeat of Ravana.