GanTangXuan: GanTangXuan is specifically for official rest rest place, according to the book of songs, one for people to do good official called YanZhao male, he went on a circuit around, don't people to build a house for him, is on the side of the road GanTang tree (a tall deciduous trees) office, build a hut for the night, even the hut also don't a person to the edge of clip, then he died, people miss him very much, took to GanTang tree, see GanTang ennobled, like see the ancestral temple, and then use GanTang generation refers to the official, the Chinese have a proverb called "sweet memories left behind by love", which means to leave people miss, or praise left official record.
