Also ‘the Helix’ and ‘the Empyrean’. The light half of the Sea of Chaos, opposite of the Atramenta, drawn out by Ællead as the dream of creation came to Him. The Firmament was partly used as material in the Shaping of the Creation at the hands of the Demiurges.
Similarly, it can also be Shaped by well-attuned mortals, in the form of Firmamentism, the practitioners of which are known as Onésimus or Shapers. The effects of the Firmament upon the Material and Elyden are subtle and its domains are that of the mind and constancy, though its influence on Elyden usually takes the form of unequalled magnetism (for instance, lodeliths) and the rapid decay of life in both flora and fauna.