What enlightenment does Jian Zhen's eastward trip to Japan to spread the culture of Tang Dynasty have on the development of Sino-Japanese friendly relations today?

During the reign of Emperor Xuanzong of the Tang Dynasty, at the invitation of the Japanese, Jian Zhen travelled eastward to Japan, and it was not until the sixth time that he succeeded. During his ten years in Japan, he tirelessly spread the culture of the Tang Dynasty. His carefully designed Tangzhao Temple is considered as an artistic pearl of Japan.

Enlightenment: Take history as a mirror, face the future, expand pragmatic foundation and exchanges and cooperation in various fields, strengthen economic and cultural exchanges between China and Japan, and strengthen friendly relations.