Soothing — neither hot nor cold, perfect balance.
Rich in active gases or metals — a strong mineral character.
Soft water — natural, classic buoyancy.
Sirenxi Wenquan Gongyingshu — 'Four Persons Stream Hot Spring Supply Tree' — is a naturally sulphurous geothermal spring in China, its unusual compound name suggesting a spring associated with a four-person stream — perhaps a spring that serves four villages or families — with a 'supply tree' designation that may reference a tree under which the spring water is collected and distributed to users. Such specific, functional naming reflects the practical management of thermal spring resources in Chinese rural communities, where access to geothermal water has historically been carefully organised and equitably distributed among the households and villages that depend on it.