Yu: The original meaning of the word Yu refers to the eaves of houses, and later refers to the boundaries and spaces or boundaries of houses, describing people's manners.
"Shuo Wen Jie Zi" explains the cloud: Zhai Ye. From the sound. "Yi" said, "Go to the next building."
Jay: The original meaning of the word Jay refers to people with extraordinary intelligence. In addition, it also refers to excellent, unique and particularly outstanding, such as masterpieces and stones. Meson is often used as a person's name to express expectations or wishes, because it can show outstanding talent, wisdom and character.
"Shuo Wen Jie Zi" explains the cloud: pride. From people's voices.
The moral is: "Nine days to the moon, man called hero gallops across the universe".
Idioms are magnificent heroes.