Introduction to Yixiantian: Yixiantian has two cliffs standing opposite each other like gates. One man is in charge of the gate and ten thousand people are unable to open it. It is called the Dragon Gate and is commonly known as "the alley". When people walk there, they can only see a sliver of blue sky, hence the name. From here, you can go up the mountain and jump over the dragon gate to pray for good luck.