The Dark Realm Has Come, I Have Become a Saint

You have a weird dream every day. In the dream, you are a handyman of the Immortal Cultivation Sect. One day, the dream channel opens. You can share your abilities in dreams. The dark realm opens and the world is in turmoil. Link to the Black Prison, all races descend. But what does this have to do with anything? After all, you have overcome the tribulation and become a saint.