The word «Arshan» means «healthful water». May be it takes root from sanskrit «rashiani» – nectar, drink of gods. So named a mineral or warm spring, having a healthful value.
Since time immemorial people use the natural mineral water as a treatment for lots of diseases. The Ulyunsky spring is used for prevention of eye diseases.
The spring is rich in mineral salt. In fact, the springs that proved to be healing, were considered sacred and were worshiped by the ðeople. Sacred Places of Buryatia