In the novel 1984 by George Orwell, how does Big Brother affect the theme of manipulation?

Big
Brother is the enigmatic figurehead of the Party, whose picture adorns every hallway, forum, and
public space in 's dystopian nation of Oceania. The stoic, masculine portrait of a man with a
stern look and a bushy mustache is the face of Big Brother and underneath his portrait is the
warning "BIG BROTHER IS WATCHING YOU" (Orwell, 4). In addition to the numerous posters
of Big Brother hanging throughout Oceania, his image also appears on telescreens during the Two
Minutes Hate period. Big Brother offers the Party members encouraging words and comforts them
after they witness the horrifying images of enemy soldiers attacking their nation. Big Brother's
image manipulates the Party members by striking fear in them while simultaneously offering them
protection from government scapegoats like Emmanuel Goldstein.

Big Brother's
portrait is a constant reminder that Party members are under surveillance, which alters their
behaviors by indirectly suggesting that they act completely orthodox at all times out of fear
that they will be arrested by the Thought Police. The Party also manufactures hysteria, which is
illustrated during their Two Minutes Hate period, and uses Big Brother's image to calm and
assure the Party members that he will protect them. This method of manipulation creates a
reverence towards Big Brother as the Party members look to him as their courageous leader and
protector. Overall, the Party uses Big Brother's image to strike fear in its populace and
manipulate Party members into idolizing and obeying the government
figurehead.