Neo is offered a choice between truth and illusion. If he takes the blue pill, he will return to his old life, where everything seems normal. If he takes the red pill, he will wake up to see the world as it truly is. He chooses the red pill. When he wakes up, he realizes that he’s been asleep in a pod where he only dreamt that he was living a normal life. The truth is, he and all of the other humans were prisoners of sophisticated machines. The machines created the illusion of a normal life for the sleeping humans so they could harvest their energy.