From the Seven Days of Resurrection to the Taoist Master

Please believe in science! There are no ghosts in this world! Anyone who tells you there is a ghost is either a liar or a fool! If someone tells you that a person will come back to see you seven days after death, please give him a firm slap and tell him to believe in science! After seven days, he resurrected as a fierce ghost and remained in the world for less than a year. Watching the flowers bloom when they rise in the east and fall in the west, I am an immortal on the top of the mountains and rain. This is also false! Everything in this story is the author's fantasy, please don't believe anything!