Self Importance is another name for Ego. Our belief system sets up multiple self image concepts in our mind. Then through repetition of expression from those self images we learn to identify those false self images as being us.
Ridding ourselves of the emotional memory and the stories of past trauma. The body stores emotional memory. The mind recalls and replays those emotional memories in our subconscious. The emotions are projected into our body, and our conscious mind often then justifies the cause of those emotions as something going on in the present moment. The present moment event may be a trigger, but not the cause. Those emotional reactions wouldn’t happen unless the trauma memory were there.