The Flower Rain Tower is full of flowers, which are the essences of life and death. The flower rain tower contains the secret of the "bodhi root," which is the "essence of the earth" . If he can get the secret, he can escape. But if he is ambushed, he will have to kill the person who is guarding the tower. He will gouge out his eyes, pull out his tongue and cut off his hands and feet to prevent the leak.