path

A path is essentially a list of keywords.

However, the path (:aardvark :beluga :coeleocanth :dodo) may be denoted :aardvark:beluga:coeleocanth:dodo and will be expanded into a list by the reader. If the value of :ardvark in the current environment is a map, and the value of :beluga in that map is a map, and the value of :coeleocanth in that map is a map, then the value of the path :aardvark:beluga:coeleocanth:dodo is whatever the value of :dodo is in the map indicated by :aardvark:beluga:coeleocanth; however if the path cannot be fully satisfied the value is nil.

The notation ::aardvark:beluga:coeleocanth:dodo is expanded by the reader into ((oblist) :aardvark :beluga :coeleocanth :dodo), or, in other words, is a path from the root namespace.