The word sauna is an ancient Finnish word referring to the traditional Finnish bath and to the bathhouse itself.
There are etymological equivalents in the Finnic languages such as the Ingrian and Votic word sauna, Estonian saun, Võro sann and Livonian sōna. The word suovdnji in Sámi means a pit dug out of the snow, such as a hole for a willow grouse.
In Baltic-Finnic languages other than Finnish, sauna does not necessarily mean a building or space built for bathing. It can also mean a small cabin or cottage, such as a cabin for a fisherman.
The sauna sessions took place between March 22 and April 22 at the Neue Galerie in Bern, Switzerland.