The Ode to Epang Palace

People know that Qin Shi Huang unified the Six Kingdoms, but not why he did it. People know that Qin Shi Huang died in the west, but not why he traveled all the way there. People know that he built the Qin Mausoleum and the Epang Palace, but not who Epang was. I am Epang. Let me tell you some stories from more than two thousand years ago. (This story is entirely fictional. Any resemblance to actual people or events is purely coincidental. Please don't treat it as official history. I did, after all, give my history back to my history teacher.)