An ancient book says: In primordial times, there was a mountain so tall it reached the heavens. It was called Buzhou. Everyone knew of it, but few knew that south of Buzhou stood another mountain. Though unremarkable, it was often spoken of by ghosts and monsters. This was... the mountain's name. There was a temple in the mountain called... It had no statues of gods or Buddhas, but instead enshrined an ancient tree. The tree was the only one of its kind, and no one knew its species. When ghosts made wishes, the tree would manifest strange signs, and the monks would grant their prayers, earning it the name Fuyuan.
The tree came into being alongside the mountain and temple, and had existed for a thousand years. After three hundred years, it gained a spirit and named itself Fuyuan.
No one knew that Time had a human form, and that his name was Qin Shi. When the tree appeared, he noticed it at once and fell in love at first sight.
PS: This passage is entirely made up by the author. (The general idea is: Everyone knows about Buzhou Mountain, but not that there's an ordinary mountain to its south. The ghosts and monsters talk about it often because there's a temple on the mountain. The temple doesn't worship any gods or Buddhas. It has a wish tree, the only one of its kind, and no one knows what species it is. When ghosts make wishes, the tree displays strange signs, and the monks can help make those wishes come true. As for how the tree came to be, it appeared at the same time as the mountain and temple, and has been around for a very long time. In its three-hundredth year, it developed a spirit that named itself Fuyuan. And what no one else knew was that Time had a human form, a man named Qin Shi. He noticed the tree as soon as it appeared and fell in love at first sight.)
Theme: Not decided yet