Yav

Prav (Правь), Yav (Явь) and Nav (Навь) are the three dimensions or qualities of the cosmos as described in the Book of Veles of Slavic Native Faith. It should be mentioned that this book is widely regarded as a forgery by most scholars today. (Rodnovery). The literal meanings of the words, are, respectively, "Right", "actuality" and "probability". They are also symbolised as a unity by the god Triglav (the "Three-Headed One"). Already Ebbo (c. 775 – 20 March 851, who was archbishop of Reims) documented that the Triglav was seen as embodying the connection and mediation between Heaven, Earth and the underworld / humanity; these three dimensions were also respectively associated to the colours white, green and black as documented by Karel Jaromír Erben.

Prav ("Right"; cf. Greek Orthotes, Sanskrit Ṛta), is the universal order otherwise described as the "Law of Heaven", which is enacted by the supreme God (Род Rod, "Generation" itself in Slavic theology) and permeates and regulates the other two hypostases.

Prav is at the same time the plane of gods, who generate entities in accordance with the supreme order; gods and the entities that they beget "make up" the great God. Yav ("actuality") is the plane of matter and appearance, the here and now in which things appear in light, coalesce, but also dissolve in contingency; Nav ("probability") is the thin world of human ancestors, of spirit, consisting in the memory of the past and the projection of the future, that is to say the continuity of time.

Represented as Triglav the three worlds are traditionally associated, respectively, to the three gods Svarog ("Heaven"), Perun ("Thunder") and Svetovid ("Worldseer"). These three gods are also seen, respectively, as representing the qualities of soul, flesh and power. Perun and Svetovid are regarded as manifestations of the same Svarog, and other names for them are Dazhbog ("Giving God", "Day God") and Svarozhich (the god of fire, literally meaning "Son of Heaven"). The netherworld (Nav), especially in its dark aspect, is also traditionally embodied by Veles, who in this function is the god of waters but also the one who guides athwart them (cf. Sanskrit Varuna).

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