This feature can probably be thought of similarly to Clojure's map access via keywords: if you write `(:something map-var)`, you'll get the value of the field ‘

This feature can probably be thought of similarly to Clojure's map access via keywords: if you write `(:something map-var)`, you'll get the value of the field ‘:something’ in the ‘map-var’ variable. I.e. keywords can be ‘executed’, and such calls get translated to map access.