Coordinates, a mathematical concept, are used to determine the position of a point on the celestial sphere, so that the coordinate system of the spherical surface can be established. Direction, on the other hand, refers to the four directions of east, west, south and north.
Coordinates and directions are combined, that is, the unit vectors in the direction of the line between the observer and the celestial body at a certain point. Deduce, rise to a height, coordinates are the base point, the direction represents the ideal and pursuit of life.
In social life, coordinates and directions are omnipresent.
Often, on the street or in a corner of the neighborhood, you will see a person with a mobile phone attached to his ear, pulling his throat, spitting and telling another person: "This is it!" Why don't you understand? What you should know is here! One hand clutched the phone so hard that it almost reached its ear. The other hand danced up and down, left and right, as if the conductor of the orchestra, with a great taste of pointing out the country.
Unfortunately, what exactly is "where" he means by "here"? The other party still did not understand, and asked vigorously: "Where is it?" Where is it? ”
"Oh, that's stupid, isn't it here!" I'm just standing here calling you, can't you see it, what else do I have to say to you to understand! "The rhetoric is fierce and sincere. Unfortunately, the other side...
Some of the people who walked by him were nervous and stupid, some were smiling, some were shaking their heads as if they wanted to say something but were unwilling to say it, as if watching a stand-up comedy, it was very funny and hilarious.
It turned out that the person who called was inviting the other party. The phone just blindly emphasizes "here", that is, does not say the specific location of "here" and the direction that the other party is looking for.
In fact, in the caller's subconscious, "here" is a place he is very familiar with, thinking that the other party should also be familiar. The other person always asks "Where?" It shows that the other party is confused, and the "here" that should be known does not know whether it is Alzheimer's disease!
Undoubtedly, he made the mistake of "coordinate" and "direction". Impose your "here" on people who are very unfamiliar with "here". It goes without saying that he just broke his throat, and the other party can't understand it, he can only be a "stupid person".
Since ancient times, Chinese have attached great importance to the Big Dipper and worshipped them as gods. The so-called Big Dipper is a galaxy composed of seven stars: Tianshu, Tianxuan, Tianji, Tianquan, Yuheng, Kaiyang, and Shaking Light. The ancients associated them and imagined them as the shape of a bucket of scooped wine. The Big Dipper appears in different directions in the sky at different seasons and at different times of the night. Interestingly, the ancients determined the season according to the direction pointed by the bucket handle at the beginning of the dusk: the bucket handle east finger, the whole world is spring; the bucket handle south points, the world is summer; the bucket handle west points, the world is autumn; the bucket handle north points, the world is winter. It can be seen that the Seven Stars of the Big Dipper, which is a coordinate, is a pointer to the sky, the seasons and directions on the earth, and plays a unique role in human production and life.
In the new century, with the development of high technology, the functions of the Big Dipper have become stronger and stronger, and have been applied to many aspects. Among them, the birth of the navigation map not only realized the dream of the ancients to traverse the five continents and the world, but also benefited China and contributed to a great cause to the world.
When I was young, I lived in the countryside, and the biggest expectation of the year was that in the first month, I could "go to my grandmother's house". Grandma was wrapped and let go of the "big and small feet", walking crookedly, like a penguin. However, in order to pick up and drop off our brothers and sisters, they also ran back and forth tirelessly.
My grandmother's house was in the south of my house, more than 30 miles in a straight line, and it was blocked by two hills, several rivers, and a large reservoir. Grandma told us more than once: "From your house to my house, from north to south, you have to pass through the Burning Pulse Gang, the Laterite Mountain, the Xie Gaotang Reservoir, and then turn over the Black Pine Hill, and see the big elm tree, and you will arrive."
Mountains, rivers, rivers, and fertile fields, but there is no real road to walk, just as Mr. Lu Xun said: "There is no road in the world, and the more people who walk, the more they become the road." Every time I walk, I look at the direction, step on the others several times, it seems to be like a road "road".
Burnt Pulse Hill is a town, and Laterite Mountain is a mountain. The town is not big, the mountains are also very small, but it is very famous. In the early years of the Ming Dynasty, in order to protect The True Dragon of Emperor Zhu from being violated, Liu Bowen went around slaying the "False Dragon". One day, he inspected the red clay mountain boundary and found that there was a dragon lying on its side, with the potential to jump up, so he drew his sword from his waist and slashed it off. A stream of red blood gushed out with a trace of hot air, and in an instant, the soil on the mountain was stained red. On the small hill outside the earth mountain, the flames steamed and a sea of fire. Since then, the mountain has been a laterite mountain, and the post has been a burning vein post.
This is folklore, with a certain superstitious color. Grandma was illiterate, uncultured, and did not know what had happened in history, but she knew many stories of Zhu Yuanzhang and Liu Bowen. Of course, none of this is Grandma's concern. Grandma just repeatedly told us: "There is no road that is not tight, find the burning pulse hill, see the red clay mountain, and run in the direction of Xie Gaotang and Heisonggang."
Later, we walked on our own, firmly remembering these places, as if counting the vines and gourds, and moving forward one by one. Grandma has been away from us for many years, and her words are still in my ears, and those places are the coordinates and directions in my heart, which have always been in my memory.
Coincidentally, there is a Statue of Liberty in New York, the United States, whether it is Americans, or people from other countries, as long as the cruise ship reaches the East Coast, sees the torch held high by the goddess, it will cheer and know that it has arrived in the United States. Politics and nationality aside, the statue of the free water deity is a coordinate and direction between East and West.
On earth, since the existence of human beings, life has been constantly developing. Migration and mobility are extremely common and indispensable things. From south to north, from east to west, climbing mountains, crossing rivers, to find the place you yearn for, you must have coordinates and directions.
Today, the world has entered the high-tech era, national defense, economy, communications and many other fields, if there is no positioning and no navigation, it will be dark and lifeless.
What about life? There is no ideal in the heart, no pursuit, it is equivalent to sailing in the vast sea, can not find the coordinates, can only be like a headless fly blind collision. In the same way, knowing the specific location of "here" and having the accurate direction, you will be effortless, without yelling "here" in your throat, and you can reach "here" without deviation.
On October 10, 2021, I wrote about the shores of Chao Lake in Hefei