The danger of not expressing yourself is mainly based on fear as a result of not being enough grounded and a bad function of your kidneys. As a result you avoid conflicts.
Handling a conflict by saying what you see, saying what you want although you know the other does not like what you are going to tell him or when you are afraid that the other persons will not like you anymore afterwards or that your boss might dismiss you, all these are in no comparison to your self destructing program you start when not expressing yourself, not handling a (supposed) conflict. It doesn’t always mean that you’re right but at least you should be able to start the discussion about what you are experiencing and feeling. Unfortunately, we all desire to be liked or belonging to a group. As a result you tend to not saying what you feel or think. You talk with the group, the family where you originate from or the local local community.
As such you are not expressing who you really are and cannot give in to what you came here on earth to do this lifetime. Especially in more remote areas where people are very close and depend on each other. Often inbreeding has taken place in such remote areas as they marry a local person or a person from a neighboring village and as such create a new person in the same gene pool. With often degenerating results physically, mentally, emotionally or spiritually. What is expressed in more ignorance, unconsciousness and less alertness. In such areas they are less used to act independently from the group, to stand on you own feet and walk with your own shoes. So instead of acting independently and standing in your own grounding you act from that dependency of whatever group. In fact you act nicely and put on a clowns mask in order to remain a welcome member of the group. It shows a disturbed heart area (yin organ of the hearth).