Answered by Linda from Italy | Nov. 13, 2014 03:43
The palace is called forbidden city because common people cannot get close and have access to it, which indicates the apparent hierarchy and the emperor’s sovereign state.
People are inclined to accept that the royals are born to be superior to common people, which suppresses the sense of equality, fairness, democracy.
And of course, the architectural style of the palace influences the following garden styled buildings.