Daena (Avestan daēnā) is one of the deepest concepts in Zoroastrianism — the divine "conscience-soul," the inner spiritual self, the personification of one's own moral choices that meets the deceased at the Chinvat Bridge. In Zoroastrian eschatology, she appears to the dead as a beautiful young woman to the righteous, an ugly hag to the wicked — being one's own deeds made manifest.
Featured in the Avesta and the Hadhokht Nask.
Daena does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
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In Pythagorean numerology the letters of Daena reduce to 7, The Seeker. This is a traditional interpretive system, not a factual claim about the name.