The song is very majestic and is often used to describe the majesty and solemnity of the palace..."

After seeing these, I recommend Shensi Zhe's "Memory of the Forbidden City", absolutely It's majestic, majestic and solemn. I don't remember whether it appeared in Bao Qingtian, but it has been used in many other TV series.

http://www.merage.uci.edu/~ zzhou01/newage/namusic/s.e.n.s.%20-%20palace%20memories.wma