The Daoist master is

In the small courtyard, all the apprentices fell silent. Li Yuan lowered his head, his face ashen.,When the sun was high in the sky, and the sound of hammering 'clanging' could faintly be heard from the front yard, the apprentices finally got their breakfast and had a short break.,And what that book called 'Heavenly Mandate', is indeed simple, even to the point of being rudimentary...。