“Confrontation is something that I accept as part of the project though not its purpose.” (Andy Goldsworthy)

Confrontation means the act of confronting; a face-to-face meeting; the clashing of forces or ideas; comparison.
Contiguity means the quality or state of being contiguous, proximity; (closeness, immediacy, nearness, propinquity, proximity, vicinity).

“Some boundless contiguity of shade.” (William Cowper)