Daena

Daena is a Zoroastrian concept representing insight and revelation.
See more at Wikipedia.org...

[Persian] The goddess who personifies religion in Persian mythology. Her name means "that which was revealed". Daena is considered to be the daughter of Ahura Mazda and Armaiti. She is one of the Yazatas.

Daena (Avestan) [from da, day to look, see, know] The personification of the Zoroastrian law or religion, presiding over the 24th day of the month, and giving to that day her name. Together with Khista (religious knowledge, the knowledge of what leads to bliss) she forms the subject of the 16th Yasht, Din Yasht, Din being Pahlavi for Daena. Christi (knowledge) was used in Mithraic circles in the same sense as Daena in Zoroastrianism.
It is the human principle of understanding paralleling manas (TG 94); also the fourth of the five inner faculties. On the Chinvat Bridge after death the soul meets its daena in the form of a maiden whose appearance varies according to the soul's deeds on earth.