The answer above is correct ^
The Buddhism is a religion that has its roots in India. From India, it started to spread in the neighboring regions of Southeast Asia and East Asia, with the spreading going through the trade roots.
When this religion reached China, it seemed very appealing to the people, but very importantly, to the ruling class as well. The reasons as to why the Buddhism was so appealing to the Chinese were numerous, with some having bigger influence than others.
The Buddhism was a religion that promoted inner peace, and living a good quality life.
It was promoting equality in the society, and everyone was set to be on the same level.
This religion was promoting harmony between the humans and the environment, and that it is crucial that they coexist in perfect balance for the good of both sides.
They were afraid of what might happen if the Union were to dissolve
