It is a form of collective meditation. In that wooden room, societal anxieties burn away. The "problems" of the outside world cannot survive in that heat. This creates a distinct atmosphere of Gemütlichkeit —a difficult-to-translate German term encompassing coziness, belonging, and peace. FKK Rochelle functions as a secular church, offering absolution not through prayer, but through sweat.
Given the lack of results, here are the closest known matches:
( Freikörperkultur ) is the German term for "Free Body Culture" (nudism/naturism). It is commonly associated with beaches, resorts, and parks, primarily in Germany and parts of Europe.
If the nudity is the theology of FKK, then the Aufguss (sauna infusion ritual) is the liturgy. At Rochelle, the sauna masters perform this ritual with a seriousness that borders on the religious.
