Well, the main theme could be seen as the struggle between the spiritual and the material world. The black monk represents a sort of spiritual or otherworldly figure that intrudes into the protagonist's very material - his studies, his relationships. It makes him question his own place in the world and what really matters. This struggle is a central part of the short story.
In 'The Black Monk' short story, the main theme is about the human psyche. It explores how the human mind can be both a source of great inspiration and also great torment. The black monk is a manifestation of the protagonist's inner thoughts and desires. It might also touch on the theme of isolation as the protagonist seems to be alone in his experiences with the black monk, which sets him apart from those around him.
The main theme is often related to the power of the imagination and its impact on a person's perception of reality. The protagonist's hallucinations of the black monk show how his mind can create something that blurs the line between the real and the imagined.
The main theme could be the struggle between reality and illusion. The black monk might represent something that blurs the line between what's real and what's not in the protagonist's mind.
The black monk is a mysterious figure in the story. He could be a symbol of the protagonist's inner demons or a supernatural entity.
Since I have no knowledge of 'the black chat short story', I can't be certain about its main theme. It could be a story that uses 'black' to represent a negative emotion or situation, and the chats in the story could be centered around that. For example, if it's about a group of people in a difficult situation sharing their thoughts through chats, and the 'black' could be a metaphor for their hardships.
The main theme could be about mystery. In many short stories set in a 'black city', mystery often prevails as the setting itself is rather gloomy and can hide many secrets.
The main theme could be about the mystery of the black dog. Maybe it represents something unknown or a symbol of fear.
Well, I think the theme is about kindness and cruelty. Black Beauty encounters both kind and cruel humans. For example, some owners take good care of him while others overwork and mistreat him. This contrast reflects on the theme of how kindness can make a big difference in an animal's life compared to cruelty.
As I don't have access to the 'the black ghosts short story', I can only guess at the main theme. It might be centered around the black ghosts as symbols. For example, they could symbolize the dark side of human nature or some hidden danger in the story's setting. Or perhaps it's about the search for the truth behind these black ghosts, which could imply a theme of discovery and revelation.
The main theme is often about the life and experiences of a horse. It shows the horse's different owners, some good and some bad, and how it endures various situations.
The main theme is the life and experiences of a horse. It shows the kindness and cruelty that Black Beauty encounters throughout its life, highlighting the importance of treating animals humanely.
In 'the black sheep short story', I think the theme is centered around the idea of the outcast. The character who is the black sheep is probably excluded because of their differences. This can show how society treats those who don't fit the norm, whether it's in behavior, appearance or beliefs.