There is nothing wrong with people always believing what they see with their eyes, but sometimes when things exceed the search range of their eyes, the terrible imagination comes into play, and it can distort the facts arbitrarily... Well, you know, there are actually many things in this world that people cannot see, but she can.
When she was born, the sky was covered with snow and the trees were covered with ice, so she was named Xueer. Her mother died when she was young, and her father was busy outside all day long in order to make a living. She was introverted by nature when she was young. She spent most of her childhood alone, but she was still happy because she had "them".
There is a kind of creature in this world that humans cannot see with the naked eye. She calls them "spirits". She always feels that spirits are incredible creatures. Maybe she is the only one in the world who knows their existence, and only they can understand her...