I was really struck by this. Standing in the Garden of Gethesemane, every thing made sense. On the night before Jesus was crucified, he lowered himself beneath the temple. You can see in the background of this picture the walls of the Temple Mount. The only thing missing is the Temple. Jesus determined himself to make the ultimate sacrifice as he prayed below the Temple, just hours before the last sacrifice would be made.
In the middle of the Garden is the Church of All Nations. In front of the Altar is the rock on which Jesus went through the Agony in the Garden. We, of course!, venerated the rock. It was a very holy place.