What are the various forms of han, and how are they viewed in Korean tradition?

A Post-Colonial Christology
Wonhee Anne Joh, Heart of the Cross, Intro.  ch. 2

Response to the following question:
What is jeong and what is han, according to Joh? What are the various forms of han, and how are they viewed in Korean tradition? What is the relationship, so far, that Joh is drawing between jeong and han?