Vayu-Vata

Vāyu-Vāta (or Vāta-Vāyu; Avestan: 𐬬𐬀𐬌𐬌𐬎-𐬬𐬁𐬙𐬀, romanized: Vāyu-Vāta, lit.'air, wind, atmosphere', Avestan pronunciation:) is the Avestan name of a dual-natured Zoroastrian deity of the wind (Vāyu) and of the atmosphere (Vāta). The names are also used independently of one another, with 'Vāyu' occurring more frequently than 'Vāta', but even when used independently still representing the other aspect.

The entity is simultaneously angelic and demonic, that is, depending on the circumstances, either yazata - "worthy of worship" - or daeva, which in Zoroastrian tradition is a demon. Scripture frequently applies the epithet "good" when speaking of one or the other in a positive context.

In Zurvanism (Zurvanite Zoroastrianism, a now-extinct form of Zoroastrianism), Vāta-Vāyu represented two facets of the quaternary Zurvan. In this arrangement, Vāta-Vāyu represented "space" while the other two facets represent "time."

Vāyu-Vāta has Indo-Iranian roots and has the same name in historical Vedic religion.