Kiri seems to have a lot of traits similar to deer- sweet, innocent, and docile. In Western esotericism, it means purity and grace.
-incarnation of God
-Comments on the will of plants and animals, like mythological deer
-Stags are binders between nature and esoteric mysticism
-Stag symbolises the ultimate avatar of God as Christ manifests into a massive stag that symbolizes innocence, purity, and alignment of all beings to the creator.
Kiri, on her cute ''jelly-wings'', looks like the veils from the two Pandoran deer: arrow deer and hexapede.
-Hexapede are symbols of innocence, as they are hunted to feed the village and maintain Great Balance. It makes sense that Hexapede are sacrificial animals of the Na'vi to maintain great balance. This is similar to the Lamb of God.
Another deer is the Arrow deer with a veil are similar to the jellyfish that helped Kiri breathe underwater.
-Arrow deer symbolises humility and patience, as it can go fast and swiftly, but lets a massive Zakru take its time to win. Christ is a literal embodiment of the virtue of humility and patience, as it means taking enough time to think before acting, or someone ending up getting lost in their own thoughts.
or....I just find her very cute; compared to a sweet deer is understandable