A country or a nation cannot live without its soul. Ideology is the work of setting the heart and soul for the country and the nation. It is related to the flag, the road and the future and destiny of the country. "We should adhere to the fundamental system of the guiding role of Marxism in the ideological field," "consolidate the common ideological basis for the unity and struggle of the whole Party and the people of all ethnic groups," "build a socialist ideology with strong cohesion and leadership," "firmly grasp the leadership of the Party in the work of ideology"... In the report to the Twentieth National Congress of the Communist Party of China, President Xi stood to ensure the long-term governance of the Party and the long-term stability of the country The strategic height of ensuring the enduring prosperity of the Chinese nation profoundly clarifies the extreme importance of ideology to the Party and national security, and clarifies the direction and objectives for us to further do ideological work in the new era, which provides a fundamental basis for us to follow. "The soul is the master of artifacts." As an eternal concept, soul is often used as a metaphor for what people think is the most important thing. Ideological work is an extremely important work of the Party. It is a long-term strategy, a fundamental action, a long-term stability trend, and a long-term cause of governance. With it, the people will have the spirit, the nation will have the national soul, and the country will have the national soul. From the revolution in the revolutionary era by means of "guns" and "pens", to the material and spiritual civilization since the reform and opening up "both hands, both hands must be hard", to the new era "not only be strong in material, but also be strong in spirit", our party has always attached great importance to and is good at ideological work, so that the whole party, the whole army and the people of all ethnic groups in China will always maintain a unified mind, firm will Strong cohesion. Jin Yinan wrote in the book "The vicissitudes of justice": "If we do not establish a strong spiritual core, no matter how rich the material is, it will not help." Ideological work is to build in people's minds and has always played an important role in "arousing millions of workers and peasants to work together". Since the 18th National Congress of the Communist Party of China (CPC), President Xi Jinping has personally planned, guided and promoted, put forward a series of major principles, made a series of major decisions and arrangements, raised the flag, highlighted the sword, strengthened the foundation, carried forward the new style and integrity, resolutely and decisively eliminated the persistent maladies, constantly consolidated the guiding position of Marxism in the ideological field, laid a solid ideological foundation for the united struggle of all people, and promoted the overall situation in the ideological field of China Fundamental transformation. Marx said: "If we look at it from the perspective of ideas, the disintegration of a certain ideology is enough to destroy the entire era." Both history and reality warn us that national turbulence and regime change often begin with confusion in the ideological field and shaking of the guiding ideology. Once the ideological front is breached, other defensive lines will be difficult to defend. The disintegration of the Soviet Union, the drastic changes in Eastern Europe and the "color revolution" in some countries are lessons learned from the past. The struggle in the ideological field is not only a struggle for theory and ideas, but also a struggle for the road, the future and the destiny. We have no room for compromise. We must win completely, or we will make irreversible historical mistakes. No man can stand without a soul, and no army can be strong without a soul. The collapse of an army often starts from the ideological field. Our army always faces "two battlefields"