Fire is Home
(I'm not entirely sure if I'm doing this right, but let's go)
In Kethariye Orasaketh, the word keth means "fire, heat, home," and helana ("volcano") is directly derived from hela ("shelter, safety"). Everything in the language is based on this cultural conception of warmth and geothermic spaces as being home.
The word āsari ("great, powerful, respected") is directly derived from āsar, which refers to komatiite lava, which is the hottest lava type and is extremely rare (in our universe, this lava type is regarded as being extinct). Even though most of the Kethari now live in the desert, āsari is still used to denote high respect and praise, despite there being no lava in the environment.
Beauty is also directly tied to lava, with the words for "beautiful" (asami) and "flower" (asava) being directly derived from asan, "lava, magma."
Because beauty is tied to lava, which is both life-giving and destructive, the Kethari conceptualize beauty in a much different way. Flowers themselves are regarded as fierce eruptions/expressions of life, despite being delicate. For the Kethari, beauty is best personified as a mother rising up to defend her children. Someone who cares for others in the community, or who shows bravery in the face of danger, or someone who has strong mental fortitude can all be described as beautiful. There also is no distinction between "beautiful" and "handsome" like there is in English; everyone is simply "beautiful."
Additionally, the Kethari don't really have much of a pantheon, but of the deities they do believe in, the most important and beloved is Āsaravi, whose name can be very loosely translated as "Lovely Flower." She is the goddess of motherhood, love, beauty, life, strength, fire, volcanic and geothermic land, and war. She is said to watch over and protect children who have lost their parents, and is regarded as the Great Mother. She is inherently tied to home and safety as a result of being associated with fire and volcanoes.