The core of this movement was the belief that modern clothing and urban confinement separated humans from the life-giving energy of the sun and the natural world. By practicing nudism, or "naturism," adherents believed they could achieve a state of physical health and mental clarity. The sun was viewed not just as a source of warmth, but as a divine or spiritual symbol—a "gottliches Symbol"—essential for all life.
Several small German brands (sunscreen, summer fashion, outdoor gear) use “Sonnenfreunde” or “Kinder der Sonne.” Adding “hot” might distinguish: sonnenfreunde kinder der sonne hot
To provide a more targeted report, could you clarify if you are looking for historical archives of the FKK movement, a review of the Gorky play , or information on a specific modern event The core of this movement was the belief