5102 and 2680 are two numbers of special significance for the teaching staff group of the Army Engineering University who preach the "spark" theory to serve politics - 5102 meters. The altitude of Tibet's Shepotala Mountain is also the highest altitude they reached when preaching. 2680 kilometers, the straight-line distance between Xisha Yongxing Island and the capital Beijing is also the longest distance they go to preach. The two figures of "one high and one far" show the feelings and vision of this group, and witness the mission and responsibility of this group. In recent years, the "Spark" theory preaches that political instructors are committed to spreading the Party's innovative theory and spreading the truth of the Spark in the north and south of the motherland. This is a journey of "sparking" and a journey of casting souls of a group of "sparkers". The trip of absolute sincerity: "What I say must be what I believe in; what I do must be what I stick to." "The great changes of the new era in the past 10 years have made the Chinese people more powerful in their driving force, their spirit of struggle, and their belief in victory. When we preach the spirit of the Twentieth National Congress of the Communist Party of China, we want to express this confidence and confidence." In the middle of November, Yu Hong, the representative of the 20th National Congress of the Communist Party of China and a key member of the group of political instructors who preach the "spark" theory, went to the naval forces in the southern theater to preach the spirit of the 20th National Congress of the Communist Party of China to officers and soldiers. Yu Hong conducted in-depth and systematic interpretation and interpretation from the themes of the 20th CPC National Congress and the great changes in the new era in the past 10 years. Those who give people spark will have a torch in their heart. This group has always been firm in its belief in Marxism and communism, in socialism with Chinese characteristics, and in the realization of the great rejuvenation of the Chinese nation. It has been deeply studying and devoutly believing in the innovative theory of the Party in the new era, arming its thinking and strengthening its foundation through true learning and deep understanding, and influencing and driving the majority of officers and soldiers to spread their youth on the cause of building a strong military. Guanyun, Jiangsu, Yellow Sea outpost. More than four months ago, Yu Hong led the teachers to Kaishan Island to raise the national flag, make a speech, review the oath of joining the Party, and set foot on the island patrol road to preach the great spirit of party building for the island guarding militia. Wang Jicai has guarded the island and defended the country for 32 years, and devoted all his best years to the coastal defense of his motherland; This group holds high the torch of belief, pours in enthusiasm, and spreads the Party's innovative theory wholeheartedly. They interpret the same word - persistence. That day, when she left Kaishan Island, Yu Hong's eyes were moist. With the sound of siren, "Wang Jicai" plowed a long track. At the stern, the five-star red flag flutters in the wind; On the shore, three militiamen saluted each other with the political instructors who came to preach. At that moment, the sea, island and flag were deeply engraved in Yu Hong's heart: "Everyone has a 'Kaishan Island' in their heart, and the three foot platform is the 'Kaishan Island' that our political teachers need to guard." Time is silent, time is silent. More than 30 years ago, Yu Hongchu stepped on the platform and gave his first lecture on Marxist Philosophy. This talk has lasted for more than 30 years. Only by learning and believing can we understand the charm of truth. Yu Hong has a copy of the Communist Manifesto in her bookcase, which is full of experiences. So far, she still keeps the habit of reading the original, learning the original and understanding the principles. A hall