What does "non-legacy" mean?

The full name of "intangible heritage" is "intangible cultural heritage", which refers to various forms of traditional cultural expressions that exist in intangible forms, are closely related to people's lives and are passed down from generation to generation.

Including oral tradition, traditional performing arts, folk activities, etiquette and festivals, folk traditional knowledge and practice about nature and the universe, traditional handicraft skills and cultural space related to the above-mentioned traditional cultural expressions.

In short, intangible heritage is a skill and spirit that exists on the basis of people themselves, and it is invisible and intangible.