What did Guanyin Bodhisattva look like when she went to the East to find Buddhist scriptures?

Guanyin Bodhisattva went to the East to find Buddhist scriptures and dress up as an (old monk).

(instruct Guanyin to go to the east to find someone to learn from. He changed to an old monk, learned about Xuanzang's life in Chang 'an Hotel, and chose him to learn from the scriptures. Xuanzang's surname is Chen. In his previous life, he was a disciple of the Tathagata, and he was made of gold. I was reincarnated in the East because I didn't understand Buddhism. Father Chen Guangrui won the first prize and took his wife to the official career, but he was hurt by robbers. The thief took Mrs. Chen captive, and Mrs. Chen left a son. Reluctantly, she put the baby on a board and threw it into the river. The elder of Jinshan Temple saved the baby and named it Jiang Liuer. He will grow into a monk Xuanzang in the future. Xuanzang was determined to learn from the West. Li Shimin, Emperor Taizong, became his brother and gave Xuanzang the cassock presented by Guanyin.