A symbol of happiness. According to the data of 360 personal libraries and health information network, Ta 'er Temple was built in the thirty-ninth year of Jiajing in the Ming Dynasty (AD 1560) to commemorate the famous Zong Kaba in the history of Buddhism in China, with a history of more than 400 years. The bat pattern is a traditional symbol pattern in China. Bats are not birds or mice, but flying mammals belonging to Chiroptera in zoology. In China's traditional decorative arts, the image of bats is regarded as a symbol of happiness. Custom uses the homonym of "bat" and "blessing" to combine the arrival of bats into the meaning of "entering happiness", hoping that happiness will fall from the sky like bats. With this set of auspicious patterns.