Exploration: Buried for Two Thousand Years and Still Not Dead, Is It a Human or a Ghost?

Falling into the abyss and not dying, is this the legendary hell? I actually met the real Zhuang Zhou, don't tell me this is time travel **Does a mortal still know magic? Is it still an illusion to become an immortal? The underground world is so beautiful, should we break the dream? Extreme exploration, so real, how should science explain it? Resurrection from the dead, who would believe it, a human being or a ghost... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.