We see our world as the shadows, we are disconnected from the real world, trapped in an illusion. We are so content with what we currently experience that we have no desire to seek for something better. In a modern context this could represent the shadows as people's phones, social media, or television and the real world being outside; real life communication and experiences rather than living everything through a screen. The people that have escaped the cave are experiencing the real world, we should all do that.