It Doesn't Matter If I'm a Loser, I Have a Problem

Why do people in the martial arts world want to get the inner elixir of the Five Elements Sacred Beast of the Five Elements Ancient Clan? What is the connection between the mortal realm and the fairyland? Luck will only take care of the weak. There is no such thing as luck in the life of the strong. Grandpa, why do you know so much? What is your origin? How can the sealed passage between immortals and mortals be opened?