Rashnu

Literary sources present Rashnu as a divine, personified principle within Zoroastrian cosmology rather than a localized origin tale. In the Bundahishn Rashnu is identified as an assistant of the Amesha Spenta Ameretat (Amurdad) and is described as the essence of truth (arta/asha) that prevents the daevas from destroying material Creation. Rashnu appears in Avestan hymnody (Rashn Yasht) and later Pahlavi compilations as an enduring cosmic adjudicator rather than as the subject of a discrete creation myth.

Primary sources provide no consistent physical or iconographic description. Avestan hymnic epithets (for example, razishta, often translated 'most upright' or 'the straightest') and later comments (Dhalla) describe Rashnu in moral/formal terms (upright, well-shaped) but do not supply concrete sensory features such as color, attire, or animal form. In the available texts Rashnu is presented primarily as a juridical/metaphysical presence rather than via a standardized bodily image.

Rashnu adjudicates the deeds of souls after death as one member of a threefold tribunal alongside Mithra and Sraosha; the Avesta (Rashn Yasht) gives him epithets such as 'most discerning,' 'most fore‑knowing,' 'most far‑seeing,' 'the best doer of justice,' and 'the best smiter of thieves,' indicating capacities for discernment, judgment, and punitive action. The Bundahishn frames Rashnu as the essence of truth (arta/asha) that protects creation from the daevas. The Siroza associates him with truthful speech and the augmentation or sustaining of the world. These roles combine juridical, cosmological, and verbal/ethical functions in liturgical and mythic contexts.