Introduction to the mountain gate: Miyin Temple is a famous temple of Zen Buddhism. It is the ancestral hall of Weiyang Sect, one of the five sects of Zen Buddhism. It is the birthplace of Weiyang Sect and has far-reaching historical and international significance. "Secret Seal" originated from ancient Indian Esoteric Buddhism. "Recite the mantra (Speech Secret) with your mouth, form the Deed Seal (Body Secret) with your hands, visualize with your heart (Mind Secret), and seal the three secrets together, and you can become a Buddha."