现代文化的转型导致了现代社会的大变动和现代人的生存危机,危机最突出地表现为现代人对个体身份和集体同一性的认同危机。怀旧是现代人解决认同危机最普遍也最切身的途径。从时间维度上讲,怀旧就是保持自我在时间、历史、传统和社会中的"深度";从空间维度上讲,怀旧就是寻找"在家感",重建"本土感"。

The change of modern culture has resulted in a large change in a modern society and modern people's living crisis. The latter is manifested especially in the identity crisis of modern people with individual and collective identity. Nostalgia is the most general way for modern people to resolve the problem. From the angle of time it is to keep self's feeling of "depth" in time, history, tradition and society. Meanwhile, from the angle of space it is to look for the sense of "being at home" and reconstruct the sense of "nativeness".