Hard to say. It could have elements drawn from reality, but it might also be mostly fictional. Sometimes authors blend real-life experiences with imagination to create a compelling story.
Anguish is not based on a true story. It's a creation of the author's imagination, designed to engage and entertain readers with a made-up narrative that doesn't have roots in reality.
New science fiction often uses 'voyages' as a plot device to explore human emotions such as 'anguish'. When characters are on a voyage, they are pushed out of their comfort zones. This can result in anguish as they struggle to adapt to new environments, deal with alien species, or face the consequences of advanced technologies that they may not fully understand.
Eliminating the mysterious mirror was an important theoretical proposition put forward by Laozi. The meaning of removing the mystic mirror was to cleanse people's subjective desires, prejudices, and superstitions, so that their minds would become pure and clear, and they would enter an aesthetic realm without utilitarians, and observe the world with a clearer gaze. Eliminating the mysterious mirror was the concentrated embodiment of Lao Tzu's theory of cognition, which believed that one should break free from the complex and diverse sensory experience and stand on a higher level to understand. The aesthetic point of view of eliminating the mysterious mirror was mainly manifested in advocating the aesthetic subject's non-utilitarianness, emphasizing the aesthetic way of experience and intuition over rationality, and pursuing the realm of great beauty. This thought had a profound impact on later philosophers and literary scholars, and was regarded as an important part of traditional Chinese aesthetics.
A Severus Snape pain fanfiction could show his pain through his relationship with Dumbledore. Snape had to follow Dumbledore's orders, even when they were difficult. For example, he had to kill Dumbledore in the end. This act must have caused him great pain and self - loathing. A fanfic could explore his inner thoughts during this time.
Voyages in new science fiction are sometimes involuntary, which can greatly contribute to the anguish. For example, a character might be abducted by aliens and taken on a voyage across the galaxy. They would experience anguish not only from being separated from their home but also from the fear of what the aliens might do to them. The new and strange environments they encounter during the voyage only intensify this anguish.