What came into view was a small courtyard. Six or seven young men, about his age, dressed in hemp clothes and fifteen or sixteen years old, were busy at work.,The apprentices huddled in groups of three or four, squatting against the walls. Li Yuan sat hunched over his bowl in a corner, his shoulders aching from fatigue as he ate the steamed buns. A bitter feeling welled up within him.,The old man's obsession, he originally didn't believe it. What year is it now, still believing in the practice of "receiving a talisman and ascending to immortality"。