|Deity||Tunsé, the Impelanzan Twenty-Three, any other deity fitting with the doctrine|
|Founder||Impelanta III of Arsal|
|Founded||3rd century BCE|
|Origin||Various Peragian and regional myths and deities|
Tunseism is a pantheist-polytheistic religion, with its roots in southern Arcturia, which praises existence and the concept of Tunsé. According to this religion, Tunsé encompasses existence as "everything that is" and is also the source of everything, the source of herself, manifested in people's lives via deities, her "Aspects", the praise of which makes stronger a beneficial facet of her entirety and thus turns that aspect beneficial to the petitioner.
Tunseism has local and general heros and saints, the most important of which is Impelanta, Queen of Arsal in the 3rd century BCE and considered founder of the religion. Her legend and fate is the main model for Tunseists to achieve a life that acknowledges the universe's nature while actively working to improve oneself and their community. While prayers to any deity are part of the common Tunseist rites, a key feautre of the religion is prayers to the stars, which are considered to be the embodiment of the dead in the afterlife, Tunsé's Eternity. The Ascension, the ritual by which the dead ones are cremated and their essence is believed to elevate into the skies in the form of a star, is also the most important ritual in a Tunseism believer's life, since from that moment they will be able to take care of their living relatives and meet again their already dead loved ones.