Pyramid Head is the main antagonist of Silent Hill 2 and serves as quite possibly the most famous example of his series' use of psychology and symbolism. The game's plot starts when James Sunderland (the protagonist) receives a letter from his wife asking him to meet her in Silent Hill - but his wife's supposed to be dead. Pyramid Head stalks James throughout the game until the end where he's the final boss, and he represent James' wish to be punished for his wife's death.
Silent Hills P.T - Lisa "Gouge it out!" - "If your right eye causes you to stumble, gouge it out and throw it away. It is better for you to lose one part of your body than for your whole body to be thrown into hell." (Matt. 5:29, Mark 9:47)