A: because the plot is very important to a cultural context
The Seafarer is a very religious person - he is all alone at sea and there is no one to talk to besides God. He has nothing else left but his faith and if you told him to forget about it, he would cease to exist. He couldn't believe in his own ability to deal with life because he depends on providence and God's plans for him.
Hope this helps a bit! :)
google says it means big brother idioms
What is the story cant answer if we dont know.
