I always feel that the truth of this world is very close to me and yet seems very far away. Every day of life is just to enter the dream world. My dreams are always weird. It's so weird that it makes me doubt the authenticity of this real world. What is reality, the difference between reality and a big game seems to be just that you get a sharper touch. However, my dream shocked me no less than reality. So, what is the world? Is it because I think, therefore I am, or because I have experienced it, so I have existed. I don't know, I can only explore it bit by bit.