The reason of creating Hangul was as well described in Hunmin chong-um:
"Our language is unique, different from that of China therefore
we needed alphabet of our own. Only scholars or people from
the upper classes get the opportunity to read or write.
I feel it is my responsibility to enlighten people as a King so I have
made a new 28 letters and i wish everyone can learn this new
alphabet easily and use these new letters confortably in daily life."
It tells that Hangul was made easy to express people's thoughts into
plain texts. Jung In-ji, one of the Jiphyunjeon[click] court scholars
Clearified the reason of creating Hangul.
ич Pronunciation varies according to geographical regions.
Yet, it is such a nuisance that we borrow Chinese letters
in order to communicate. Korean language is obviously
different from that of Chinese. Therefore using Chinese
letters is inconvinient.
people who study with books written in Chinese find
a lot of difficulty in understanding. Our law had been
written in Chinese and all statements were recorded
in Chinese, therefore ordinary people found it hard to
and the public since Shilla was inappropriate in real life.