The corners. They can be like dark pits that seem to suck in light and life. In a horror scenario, the corners of the parallelogram could be hiding unknown and malevolent forces. Maybe strange creatures lurk there, or it could be the source of an otherworldly energy that drains the sanity of anyone who gets too close.
The constantly changing shape. In a horror story, if the parallelogram keeps changing its angles and side lengths, it can create a sense of disorientation. For example, a character might think they are running in a straight line along one side, but suddenly the side shifts and they find themselves in a completely different and terrifying part of the parallelogram - like space.
The feeling of being trapped within its boundaries. A parallelogram has defined sides, and if a character is stuck inside, it gives a feeling of inescapability. The character may run around trying to find an exit, but the unending series of angled walls makes it seem like there is no way out, like being in a never - ending maze of horror.
For me, it's the feeling of being watched. In a graveyard, there are so many places for unseen eyes to lurk. Every rustle of the leaves, every creak of a branch could be a sign that something is observing you, and that's truly terrifying.
The scariest element could be the loss of control. Just like in the case where a person's long nails start to act on their own, moving without the person's will. It makes one feel powerless against this strange and unnatural phenomenon.
The change in their appearance. For example, if their cute yellow bodies turn into a sickly gray, and their big eyes become sunken and bloodshot. It's a huge contrast to their normal, adorable look, which makes it really terrifying.
The sudden contrast between the beauty of spring and the horror. For example, the bright flowers and sunshine being disrupted by a dark, menacing presence. It's like the idyllic spring setting is being corrupted.
The unknown. In Destiny, there are so many mysteries and uncharted areas. When you don't know what's lurking in the shadows or around the next corner, it's terrifying. It could be a new and powerful enemy that we've never seen before, or some strange force that defies all the rules we know about the game's universe.
The unknown source of the shedding. If you don't know what's causing it, like in a haunted house where the walls are shedding some strange substance, it creates a lot of fear because your mind starts imagining all sorts of terrifying things.
The sudden movement of the chopsticks on their own. It goes against the normal use of chopsticks and is very unexpected, like in a story where a person is calmly eating and then the chopsticks start wriggling in their hands.
The unknown ingredient. If there's something in the pozole that no one can identify, like a strange meat or an unrecognizable spice, it can be really terrifying. It makes people wonder what they're actually consuming.
Movement within the wallpaper can be extremely scary. Imagine a pattern that starts to shift or change when you're not looking. Maybe a figure that was at the edge of the wallpaper suddenly appears in the center, or a door in the wallpaper that seems to open slightly more each time you pass by. This unexpected movement defies the normal static nature of wallpaper and creates a very spooky atmosphere.
The appearance of an unknown figure. For example, if in a family photo there is someone or something that no one in the family recognizes. It creates an immediate sense of unease as it challenges the idea of what was really present when the photo was taken.