Glimmer

Breathe deep and live deeper, and may your life be full of lanterns and glimmer.

There exists a phenomenom in Levis that causes marvel in any traveller to Levis from another realm. That is the Glimmer. Formed when the weilder is feeling heightened positive emotions, they spring into the air like a little friend, more motes of glimmer spawning the longer and fiercer the emotions are. With no sentience, and no clear goal, they will generally float up and away from the one with the emotion, dispersing after a few minutes. Glimmers have no mass, although they can be interacted with by affecting the surrounding air. The light produced can be manipulated within it, although the light it generates does not refract, nor does it magnify - as if it is limited to the medium it is formed in. Consuming glimmer will <redacted to be added later>.
A negative glimmer can sometimes form, entirely formed by magic users or those of the fey, they are usually sharp and are attracted to sentient beings. Touching a negative glimmer will transfer the emotion and can cause a massive chain reaction of negativity if left unchecked.
Glimmer themselves have inspired many things, including the paper lanterns that sport all around Levis, often sold by a vendor named Mr Kaito .

Paper lanterns are devices made from growing a paper thin gourd, hollowing out the seeds, then greating two spells, one of light, one of levitation. When sold, all they need to do is be activated by a touch to their source component, turning on both circuits and getting to watch the device float off and up, carried by thermal eddies, away from the owner.