I think there may be more generational differences than we care to admit on this. We were often explicitly, and implicitly, taught by our role models in our family and in our society to not delve into our feelings, that they were dangerous.
When we do this on purpose, we call it suppressing feelings. It is a conscious, active process.
When it happens and we had no idea that we were doing it (unconscious) we call it repression.
The current wisdom suggests: Go right into the pain, contact the pain, breathe into it and learn from it. We do not need to fear pain, whether it is emotional or physical or otherwise.
When I am ignorant of my emotions and how to cope, I may inadvertently attach danger to them. I may be afraid for no good reason at all. They are physical sensations and thoughts and they pass.
Let me know if that answers the question.