Mii'vas is an extremely rare fluid-like substance that can be used to heal Le'enle (or "immortal souls" according to the short story "Not Now, Not Ever"). It can only be created by the oldest living Le'enle, -- Argent Star at present -- and is distilled from Time, the Vague, and his/her own magic. It is described as being scintillant in appearance, thick and heavy, with a slick or slippery texture. Mii'vas which has been spilled or used is not disposed of, but rather brushed back into the baths where it is kept and purified so that it can be reused.