Rashnu

Also Known As: Avestan Rašnu, with the standing epithet Razishta, “the straightest”; Middle Persian Rashn, Rashn Razistag; Sanskrit rendering Satyapati; from an Indo-European root meaning to direct or to make straight
Region/Culture: West Asia/Middle East
Mythos: Persian Mythology, Zoroastrian Mythology
Primary Type/Nature: Gods and Deities
Mythical Attributes: He holds the golden balance on which the deeds of the dead are weighed, and the balance cannot be tilted by rank, wealth or fear.
Role in Mythos: He is the judge who meets every soul at the Chinvat Bridge and settles, without appeal, where it goes next.
Relation to Humans: The living called him down into courtrooms and ordeal pits, swearing on fire and oath-water with him named as witness, and the penalty for perjury was framed as an injury done to him personally. The dead meet him once, on the fourth dawn, and whatever he finds is what they get.

Three figures wait at the head of the bridge, and one of them is holding a scale. The pans are yellow gold and the beam across them sits perfectly level. It has been level a long time. The soul that has just arrived, three nights dead and still turning to look for a body that is no longer there, watches an entire life go into those pans, and there is no sound except the air moving in the gorge underneath. Then the beam shifts, or it does not. Either way it shifts precisely as far as the weight demands and not a hair’s breadth further.

The one holding it is Rashnu.

He belongs to the yazatas, the beings worthy of worship in Zoroastrian belief, and his name descends from an ancient root meaning to direct or to make straight. What exactly it named has been argued over for more than a century. Christian Bartholomae read it as Justice, the abstraction; Ilya Gershevitch preferred Judge, the person doing the work; Éric Pirart broke with both and proposed Orientation, suggesting that Rashnu began life as the straight and correct delivery of ritual speech long before he ever weighed a soul. His fixed epithet, razishta, “the straightest,” manages to support all three readings at once. In Middle Persian he is simply Rashn, and the eighteenth day of every month is his, shared in the liturgy with Arshtat, the spirit of rectitude, the two of them always named in the same breath.

His own hymn, the twelfth Yasht, is one of the stranger documents in the Avesta. It opens with Zarathushtra asking Ahura Mazda what in the Holy Word is created true, and it answers itself before turning to something much more practical: instructions. Bind up a three-twigged barsom against the way of the sun. Call on Rashnu the strong. Name the fire, the barsom, the boiling milk, the vessel of oil and plant sap. What is being prepared here is a var, an ordeal, the ritual by which a man accused of something he denied was put to a test that only the truth was expected to survive. The Vendidad describes another version of it, an oath sworn over water that is sulphurous and golden and gives proof, with savage penalties laid out for the man who lies. The formula for that offence is worth hearing in full, because it says exactly what Rashnu was to the people who invoked him: the perjurer is one who wards off Rashnu and cheats Mithra.

Picture the scene it implies. A charge of theft, a village, a priest tying the barsom twigs and laying them out along the line of the sun. Milk at a full boil, the smell of scorched fat and burning wood, the accused standing there with everyone he knows behind him. The invocation goes up. Nobody in that circle believed they were performing a metaphor.

The hymn then does something no other Yasht does. Having called Rashnu to the ordeal, it starts asking where he is, and it does not stop for twenty-nine verses. Whether you are in the western continent. Whether you are in the sea of wide bays. Whether you are on the tree in the middle of that sea, the tree of all remedies, on which the seeds of every plant are kept. Whether you are at the edge of the earth, or the middle of it, or anywhere at all on it. Whether you are on the high Hara, the bright mountain where night never comes and no cold wind blows and no hot wind either, where the clouds cannot climb high enough to touch the peak. Whether you are in the star Vanant, or in Sirius, or in the seven stars of the Bear, or in those stars that carry the seed of water in them. Whether you are in the moon, or the swift-horsed sun, or the endless light beyond both, or in Garo-demana, the House of Song. Each time the same answer comes back: we call you, we bless you, wherever in the world you are. Scholars have long treated Yasht 12 as a minor and rather empty composition, and Bartholomae dismissed it in a footnote, but almost by accident it preserves the most complete map of the universe anywhere in the Avesta. Twenty-nine places, grouped in threes and sevens, from the continents outward to the roof of heaven. It reads like a list of addresses for a god who has no fixed one.

The rest of what is known about him comes from his company. He is called the son of Ahura Mazda and Armaiti, and the brother of Sraosha, Mithra, Ashi and the Mazdayasnian Daena. He rides in Mithra’s golden chariot behind four white stallions shod in gold at the front and silver behind, though the text cannot keep its own seating plan straight: in one passage Sraosha takes the right hand and Rashnu the left, and twenty-six verses later it is Rashnu at the right, most beneficent and most well-formed, with Chista in white on the other side carrying libations. He turns up on battlefields too. When Mithra comes down on an army that has broken its word, Mithra strikes fear into them and Rashnu strikes a counter-fear back the other way, so that the men fleeing one run straight into the hands of the other. Mithra, the hymn says, built Rashnu a dwelling, and Rashnu gave him his whole soul in return for a long friendship. It is the closest thing to affection anywhere in his record.

Then there is the bridge, which is where the Middle Persian texts put him for good. The Book of Arda Wiraz, the account of a righteous man sent in vision through the next world, describes him standing at the Chinvat crossing holding the yellow golden balance and weighing the pious and the wicked. Mithra stands with him. Sraosha is the one who actually walks the soul over. What the balance does, and this is the point the tradition returns to again and again, is nothing dramatic at all. The Menog i Khrad puts it plainly: it does not dip to any side, not for the righteous and not for the sinful, not for lords and not for any other ruler; it does not shift so much as a hair’s breadth, and it holds no favour for anyone. A god who cannot be bought is common enough. A god who cannot be moved by pity is rarer, and that is what is being described.

His power is entirely a power of measurement, and it is absolute within its own borders. He sees what a person actually did, not what they claimed, not what their family paid to have recorded. He is undeceivable in the same way his father is. He can be summoned to any legal proceeding on earth by name and the correct ritual, and the sources place him in the ordeal pit, at the oath-water, on the battlefield, in the chariot and at the bridge, all of them situations where a claim is being tested against a fact.

The limits are just as clear, and they follow from the same nature. He decides but he does not carry; the soul crosses with Sraosha, and Rashnu stays where he is. He has no cycle of stories, no marriage, no wound, no enemy he personally defeats. In everything that survives he is called, attends and weighs, and he never once acts first. He cannot forgive, because a balance that could be persuaded to forgive would be a broken balance, and the entire value of him rests on its not being one. And the institution he was built for is gone. The ordeals stopped, the courts changed, the boiling milk went cold. What is left is the scale, still level, still waiting at the head of a bridge for someone who is only ever going to walk it once.

Frequently Asked Questions

Who is Rashnu in Zoroastrianism?

Rashnu is the Zoroastrian yazata of justice, one of three divine beings who meet a soul at the Chinvat Bridge after death. His name comes from a root meaning to make straight, and his fixed epithet razishta means “the straightest.” In Middle Persian he is called Rashn.

What does Rashnu do at the Chinvat Bridge?

Rashnu weighs the dead on a set of yellow golden scales, balancing everything a person did against everything they should have done. Mithra stands beside him and Sraosha escorts the soul across the bridge itself. The Menog i Khrad says the balance never tips a hair’s breadth out of true and shows no favour to lords or rulers.

Is Rashnu the same as Mithra or Sraosha?

No. The three are distinct yazatas who work together at the judgement of the dead, and Zoroastrian texts name Rashnu as the brother of both. Mithra presides over oaths and covenants, Sraosha guards conscience and walks the soul over the bridge, and Rashnu is the one who does the weighing.

What is the Rashn Yasht?

The Rashn Yasht is the twelfth hymn of the Avesta, a short text of thirty-nine verses dedicated to Rashnu. It gives instructions for a ritual ordeal at which he is summoned as witness, then asks in twenty-nine successive verses where in the universe he might be, listing continents, seas, mountains, stars and heavens. That list is the most complete cosmography anywhere in the Avesta.

Why was Rashnu invoked in trials and oaths?

Because he was believed to see what actually happened rather than what was claimed. The Vendidad describes an oath sworn over sulphurous golden water with Rashnu presiding, and it treats perjury as an offence committed against him directly, describing the liar as one who wards off Rashnu and cheats Mithra.