"Do not forget yesterday's suffering and glory, worthy of today's mission and live up to tomorrow's great dream". This sentence in the communique of the Sixth Plenary Session of the 19th CPC Central Committee is meaningful. It not only continues history, but also reflects reality and guides the future. （1） "History, reality and future are interlinked" Reviewing and summarizing the glorious course of one hundred years of struggle, yesterday, today and tomorrow are closely linked, which fully embodies the materialist view of history, the great view of history and the correct view of the party's history. The communique pointed out that in the Centennial course of the Communist Party of China, four "great leaps" have been achieved in the period of the new democratic revolution, the period of socialist revolution and construction, the new period of reform and opening up and socialist modernization, and socialism with Chinese characteristics has entered a new era. It concisely summarizes the grand epic of Centennial struggle composed by the Communist Party of China and the people, Reveal the historical significance of different stages to the great rejuvenation of the Chinese nation. General secretary Xi Jinping pointed out profoundly: "the great practice of revolution, construction and reform led by our party is a historical process of continuous struggle, a complete undertaking of saving the nation, rejuvenating the nation and powerful nation, and realizing the great rejuvenation of the Chinese nation." In November 29, 2012, when he visited the exhibition of Renaissance Road, general secretary Xi Jinping gave a speech. The Chinese nation's yesterday can be said to be "the mighty pass is like iron"; Today of the Chinese nation, it can be said that "the right path in the world is the vicissitudes of life"; The future of the Chinese nation can be said to be "a long wind and waves will sometimes". The three sentences of the poem deeply delineate the Chinese nation's yesterday, today and tomorrow, and vividly explain that the Chinese nation has ushered in a great leap from standing up, becoming rich to becoming strong. Whether it is "our understanding of time is based on a century or a thousand years" or "thousands of years of great historical perspective, reform and opening up is China's historical normality" and so on. It fully demonstrates the general secretary Xi Jinping's integration of the past and the present, grasping the historical trend, planning the great historical achievements in the long history and promoting the continuous development of the party and people's cause. （2） "Do a good job in practical work and better move towards the future in the in-depth thinking of history" It is our party's fine tradition to be good at summing up historical experience. At every important historical moment and juncture, the Communist Party of China should review history, sum up experience and draw wisdom and strength from history. The resolution on certain historical issues formulated in 1945 and the resolution on certain historical issues of the party since the founding of the people's Republic of China formulated in 1981 are based on learning from history and creating the future. The resolution of the Central Committee of the Communist Party of China on the major achievements and historical experience of the party's Centennial struggle, deliberated and adopted at the Sixth Plenary Session of the 19th CPC Central Committee, profoundly reveals "why we were able to succeed in the past and how we can continue to succeed in the future". On the Centennial struggle journey, it is precisely because the Communist Party of China continues to summarize and apply historical experience that it can continuously improve its ability to deal with risks, meet challenges and avert danger, and constantly achieve new great victories. General secretary Xi Jinping stressed that "history is the best textbook" and "do a good job in the deep thinking of history, and better move towards the future". On the 95th Anniversary Conference of China's Communist Party, Xi Jinping, general secretary, stressed for the ten time that he insisted on "never forget what he was thinking, and kept moving forward", and warned the whole Party: "all the way forward, we must not forget the way we have traveled; we must go far and go to a glorious future, and we must not forget the past and why we should not start." In celebrating the 100th anniversary session of China's Communist Party, Xi Jinping, general secretary, profoundly expounded the fundamental requirement of "nine essential", which is to draw lessons from history and create the future, so as to make a new journey through the consciousness of the people. At the important moment of the party's Centennial birthday, the Sixth Plenary Session of the 19th CPC Central Committee held at the key node of the historical intersection of the "two Centennial" goals put forward the "ten insistences" to summarize the historical experience of the party's Centennial struggle. 　 One important time node and one important historical occasion, general secretary Xi Jinping summarized the great achievements and historical experiences of the party's hundred years' struggle, so that the Communist Party of China can see clearly why the past can succeed and understand what the future will continue to succeed. （3） "If you don't forget your original heart, you can always" Once the Communist Party of China was born, it established its original mission to seek happiness for the Chinese people and rejuvenation for the Chinese nation. It is precisely because of the original mission that the Communist Party of China can write a brilliant chapter of not forgetting yesterday, being worthy of today and living up to tomorrow. Today, we are closer, more confident and able than at any time in history to achieve the goal of the great rejuvenation of the Chinese nation. At the same time, we must be prepared to make more arduous and arduous efforts. Take history as a mirror and embark on a new journey. "The whole party should bear in mind the fundamental question of what the Communist Party of China is and what it wants to do, grasp the general trend of historical development, strengthen ideals and beliefs, and bear in mind its original mission." the party should strive to achieve its set goals with its unremitting dedication to the green mountains, and promote the great rejuvenation of the Chinese nation with a sober and unremitting spirit of half a hundred miles ". Never forget why you started, and your mission can be accomplished. Through yesterday's "great pass is like iron", and today's "the right path in the world is vicissitudes", the vigorous Communist Party of China leads the Chinese nation to stride forward towards the tomorrow of "long wind and waves will sometimes". General secretary Xi Jinping stressed: "we have already been on the new journey of achieving the goals of the second hundred years. As long as our Party firmly believes in the first mission of the Chinese people for the happiness of the Chinese people and for the revival of the Chinese nation, more than 1 billion 400 million of China will be able to achieve a great rejuvenation of the Chinese nation by twisting together and walking on the road of socialism with Chinese characteristics. (outlook new era)