So how is this phenomenon caused? In fact, biology has a clear answer.
First, do an experiment. Blindfold a wild duck's eyes and throw it into the sky, and it begins to fly, but if it is an open sky, you will find that it must be a circle.
If you don't believe me, you can try again, blindfold yourself, walk in a straight line according to your feelings on the school playground, and finally you find that you are walking in a big circle.
In a word, the essence of biological motion is circular motion. If there is no goal, the instinctive movement of any creature is round.
Why? Because there are subtle differences in the body structure of living things, such as the wings of birds, the strength and muscle development of the two wings are also slightly different. The length and strength of people's legs are also different, so the distance they walk will be different. For example, the left leg walks a long distance and the right leg walks a short distance. It must be a big circle when it is accumulated, and so are other creatures.
But why can creatures keep moving in a straight line? For example, why do people walk in a straight line? Because we are constantly correcting the direction with our eyes, that is, the brain is positioning and correcting. Constantly correcting our gap, so we walked in a straight line.
Well, speaking of hitting the wall, you must have lost your sense of direction at this time, that is to say, you are lost. The corrective function of your eyes and brain no longer exists, or the corrective signal given to you is false or confusing. You think you're walking in a straight line, but you're actually following your instincts. You must circle around.
Some people in fixed areas, such as cemeteries, will encounter ghosts hitting the wall, which seems more mysterious. In fact, this is because the landmarks in these places can easily confuse you, because people mainly rely on the landmarks on the ground to know the direction. When these landmarks sometimes create illusions, that is, give you the wrong information. In this way, you feel that you still have a sense of direction, but you are actually lost. When people get lost, if they don't stop walking, it must be an instinctive action.
Therefore, everything actually has its inherent reason. It is said that our ancient geomancers have mastered this simple scientific secret for a long time. When building the emperor's mausoleum, they will use this rule to artificially arrange some ground markers, which makes people easily get lost here and feel that they have met a circle. There is also an X family who is familiar with this and is good at it. That's Huang, the owner of Peach Blossom Island. He can arrange an array with some branches and stones.
Sometimes, science is as interesting as paranormal.