Arn was believed by an ancient civilisation to have been The First. A being beyond imagination and time that created the Gods and let them go on to create what they would. It is said that it was Arn who created and planted the magical Earth from which the world of Titan was made by the Gods. The last people to worship this God are those who dwell on the Isles of the Dawn. However, when worship of Arn was at its zenith many of these people were destroyed by the eruption of a volcano on one of the Isles. That particular Isle no longer exists due to that eruption. Some of the people who live on the remaining Isles still worship Arn but not to the same degree.

Some scholars have postulated that Arn is the personification of all the forces, Gods, and beings in the universe. Certainly, those who still worship Arn perceive worship of Pantheons as only perceiving an aspect of Arn. Thus, the universe in which Titan resides is "Arn". In this theory the most gross divisions of Arn's "personality" are as follows: Ashra represents the "Good", Elim the "Evil" and Vuh the "neutrality" as the people of Titan might say, although the reality is of course much more complicated.