What is the source of cultural development and innovation?

The source of cultural development and innovation is the social practice of the broad masses.

Practice is the foundation of knowledge, and practice is the source of knowledge. As an activity to transform the objective world, practice is a purposeful and conscious social activity. In the practice of transforming nature and society, human beings have created unique spiritual and cultural achievements. Without practice, culture will become passive water, and people cannot carry out valuable cultural innovation and creation.