In fact, the Pure Yang Ancestor, Chongyang Ancestor, and Uncle Zhou Boqing are all figures who have mastered two Great Dao in the Da Luo and Taiyi realms. In the forest of strong figures within Da Luo and Taiyi, they are extraordinary individuals. Unfortunately, the Pure Yang and Chongyang Ancestors mysteriously went missing because of Shakyamuni, their whereabouts unknown. And although Uncle Zhou has combined two Great Dao, he hasn't merged them into one, stepping into the Unity realm. If the two Great Dao cannot become one, in the Da Luo and Taiyi realms, they merely have endless lifespan. Once faced with a tribulation, unable to substitute with a response body, there remains the risk of falling.
