Titans

"All gods are titans, but not all titans are gods"
-Vaeleaoux the Adventurous 
Titans, also known as Weaver Spirits, are a race of semi-divine beings created when a mortal ascends to such power and/or prominence that Ometeotl the Weaver deigns to stitch their very being into the fabric of Annaad itself. This renders the spirits semi-permanent fixtures in the historia of Arkon, and makes them functionally immortal, barring all but the most drastic measures. 
The ways through which mortals can attain titanhood are varied and diverse, but the most common way is for someone to take part in a story so compelling, some form of higher power would like them to stay around for longer. Many famous heroes and adventurers have thus become long lived, such as Polarch and Leonarch Zadras. 
Another way is for a mortal to become so powerful that they break the limits allowed to them by the universe, thus prompting Ometeotl to ascend them to immortality in exchange for most of their power. One example of this is Camille Maxime, who gained immortality in exchange for dropping for the apollyon class to the maksuhr class. 
One particular method of ascension involves a mortal touching upon an unclaimed aspect of the universe, and ascending to godhood to become an aeon. Most of the widely worshipped gods of Arkon are aeons, such as Axios the Divine or Angra the Betrayer. Unlike regular titans, aeons are true gods with infinite power, and their presence on Arkon is truly permanent. However, their method of ascension still causes some Terran researchers to classify them as a form of titan paragon.