(Tangibility) It is the quality of something physically felt or measured; it is real, noticeable, and tactile.
(Intangibility) It is about those elusive qualities outside of the material world, impossible to touch or possess.
(Confluence) In geography, the meeting point of two or more rivers/streams represents unification, change, or a blend of forces. In philosophy and culture, it depicts the fusion of various ideas/cultures.
(Temporality) It describes the idea of time: (i) how it passes through experiences, events, or phenomena; (ii) how memory functions; (iii) how a moment is captured; or (iv) how a narrative develops. All are related to ephemeral–perpetual time.
World Heritage Criterion (vi) is the place where Tangibility and Intangibility have Confluence across Temporality. To enhance our knowledge of World Heritage from the past through the present to the future, the idea of this book was born.
