The book tells about some things experienced by young graduates that cannot be explained by current science. It uses a writing technique of three parts reality and seven parts imaginary. The reason why it is said to be seven parts fictitious is that part of it is because the events are too long ago and cannot be verified. We can only use imagination to connect some things to form a complete story. The other part is due to the needs of writing and readability, the related events and characters are appropriately deified and polished. The real part refers to some events that happened.
