Cheok is an emotional grudge that another person conceives against you. When someone fails to fulfill his or her desire because of you, he feels so frustrated that he holds a grudge against you. This is how Cheok arises. Since the emotions are the effect of his spirit, it can also be called a ‘Cheok spirit’. This spirit can hinder you from progressing toward your own successes by causing your situations or circumstances to worsen. Thus, actions such as hating others, disregarding favors from others, doing harm to others, and speaking ill of others are all potential causes of Cheok.