I'm not entirely sure which specific 'girl' you mean. There are female characters in 'The NeverEnding Story'. It could be the one that Atreyu meets during his adventures. Maybe she's a minor character that has some significance to the overall plot, like giving Atreyu some advice or helping him in a small way.
The 'girl from never ending story' could refer to the female character in 'The NeverEnding Story'. In the story, there are various female characters that play important roles in the magical and ever - evolving tale. Without more specific details, it's hard to pin down exactly which girl is being referred to.
If it's the girl who reads the book, she has the significance of being the link between the real world and Fantasia. She is the one through whom we, as the audience, can experience the story. Her emotions and reactions to the events in the book add another layer of depth to the narrative. As she delves deeper into the story, she also becomes a part of the never - ending cycle of the tale, showing how a simple reader can be an integral part of a much larger and magical story.
The Empress in 'The NeverEnding Story' is very significant. She represents the heart and soul of Fantasia. Her illness is a symbol of the decay and danger that Fantasia is facing. If she dies, Fantasia will cease to exist. So, she is like the core around which the whole story revolves in a way.
The concept of a 'girl in the never ending story' is quite open - ended. It could be a character created by an author's imagination to drive the plot forward in a never - ending cycle of events. She could be a damsel in distress, a hero in her own right, or a bystander caught up in the eternal flow of the story. For example, in some interpretations, she might be the one who holds the power to break the cycle of the never - ending story or she could be the one who keeps the story going by her actions and decisions.
She could be a symbol of perseverance. Since the story is never - ending, her presence might represent the idea that life goes on and one has to keep going no matter what.