"I was a master at keeping my feelings in"

Mark David Chapman's quote recommends that he was adept at reducing his emotions and not enabling them to be seen by others. This might be interpreted as an indication of emotional maturity, as it is typically seen as a sign of strength to be able to control one's feelings and not let them get the better of them. However, it could likewise be viewed as an indication of emotional repression, as it is not healthy to entirely ignore one's sensations and not enable them to be expressed. Chapman's quote could be analyzed as an indication of his inner turmoil, as he was not able to express his sensations and rather kept them concealed away. This could have been a result of his training, or it could have been a coping mechanism he developed to handle the hard feelings he was experiencing.