For me it feels like the person in the song is tormented by dark thoughts, hatred and isolation, maybe thinking no one would ever like him. He keeps his emotions bottled up inside and because he has no one in his life, there's noone to stop him from spiralling into darkness. I feel like in the chorus when he says 'When the world outside comes knocking, we are going hunting' is when the person is provoked by the outside world in some way and because he's had enough of everything and is apathetic, he goes outside but only to kill because it's the only way he will feel safe outside or relieve the darkness inside him.
For me it feels like the person in the song is tormented by dark thoughts, hatred and isolation, maybe thinking no one would ever like him. He keeps his emotions bottled up inside and because he has no one in his life, there's noone to stop him from spiralling into darkness. I feel like in the chorus when he says 'When the world outside comes knocking, we are going hunting' is when the person is provoked by the outside world in some way and because he's had enough of everything and is apathetic, he goes outside but only to kill because it's the only way he will feel safe outside or relieve the darkness inside him.