You are not alone in the universe. And you are not alone in this journey through the universe. You are lying looking at the sky on a beach when someone holds you by the hand. It guides you in an amazing odyssey to the black holes, the most distant galaxies and the very beginning of the cosmos. You leave your body and travel at impossible speeds, you enter an atomic nucleus, you travel in time, you enter the Sun. It is not that they explain the universe to you. It is that you touch it. It is not that you finally understand the universe. You have it in your hand.