This book comprehensively interprets upholding and developing socialism with Chinese characteristics and its significances from eight aspects, namely ''socialism with Chinese characteristics is essential to realize the Chinese dream''; ''socialism with Chinese characteristics is the fundamental achievement of CPC and the people''; ''firmly believe in the road, theory, system and culture of socialism with Chinese characteristics''; ''set up a new concept of development''; ''integrally develop the overall layout of five-in-one''; ''harmoniously promote the strategic layout of four-comprehensive''; ''basic principles of promoting socialism with Chinese characteristics'', and ''China's road is to seek common development in opening up''.