"I've pent up all my aggression, kept swallowing it and swallowing it"

This quote by Mark David Chapman suggests that he had been reducing his emotions and sensations of aggressiveness for an extended period of time. He was not able to reveal his anger and frustration, instead he was "swallowing it" and keeping it inside. This could be analyzed as a metaphor for how he was handling his inner chaos and not permitting it to manifest in his outside behavior. It could also be seen as an indication of his mental state, as he was unable to express his feelings in a healthy method. This quote could be seen as a warning sign of the prospective risk that Chapman presented to himself and to others. It is a tip of the significance of having the ability to reveal one's emotions in a healthy method, and to seek help if needed.