One of the most complex and difficult words I’ve known was the Korean word ”jeong (정)”. It is a very broad concept in Korea and really an important part of Korean people and culture.
One may define it as a connection feeling of friendliness or connection with everything that interacts with us, or a feeling of deep association with somebody or something to the point that it is a part of you and it is inseparable.
Of the many definitions in my dictionary, “feeling,” “compassion,” “sentiment,” and “affection” seem to come the closest, but none of them convey the real meaning or importance of the term. I see jeong existing between family members and close friends as an invisible force that binds them together. (Peter M. Beck)
Jeong is a very particular sentimental attitude that is without equivalence in other countries of the world. It is difficult to translate into English because it is a special one that goes beyond mere affection and loyalty.