As is done below so is done above
Rabbi Shimon explains how Jerusalem and Zion were established by God because He wanted to create the lower world similar to the Upper World. Rabbi Yehuda says that there is no service of worship above until the priest performs his service below. When Yisrael stop their service below then it also stops above, and thousands of hosts above that are connected to the children of Yisrael hold up their service. Yet for all this God does not abandon Yisrael even when they sin. Rabbi Elazar deduces that perfection above and below depend on the priest, who makes atonement for himself and for everyone else. Lastly we hear from Rabbi Yitzchak that when Yisrael are in exile it is as if God is with them since the Shechinah never leaves them.