The film "Matrix" uses the theme of sleep as a metaphor — reality turns out to be an illusion of the mind, connected to the network with a single program. So it was up until the main character has not decided to abandon what he knew before, for which he received the opportunity to see the truth. Waking up in the real world, he realized that he was a weak creature, grown intelligent machines to obtain vital energy from human bodies, which are still controlled by similar programs. True reality goes beyond the wildest expectations and fantasies of the mind.