I Found an Ancestor on the Grave

Lin Yuan, the most stable "genius" in the history of the Lin family - was stable at the first level of Qi Refining for two whole years without moving at all. 100% Of the spiritual energy comes in and 90% of it leaks out. It is known as the "human shaped colander". Until he touched something even more outrageous at the white stone grave in the family's forbidden area. From then on, an "ancestor" lived in Dantian. He walked slowly every day, and by the way, his spiritual power was transformed into a heavy and blocked "iron lump", completely blocking the way to practice. Comes with a bonus: a "mental pollution counter" that turns your brain into mush. Others relied on spiritual energy to cultivate immortality, while Lin Yuan relied on "digestion" to cultivate immortality - digesting poisons, digesting monsters, and digesting all dirty and weird things. "Ancestor" has a good appetite and strong feedback, but the side effects are a bit severe: he easily goes crazy. So there is a guy with a unique painting style in the world of immortality. Dealing with poison ivy? I'll do it, a professional counterpart. Exploring the Deadlands? I have high resistance. He often has empty eyes and murmurs to himself: "You can't stop taking the medicine..." The "ancestor's" appetite was getting bigger and bigger. Lin Yuan looked at the strange gray lines appearing on his arms in the mirror and fell into deep thought: Is this a golden finger or a life-threatening talisman?