The Siroza ("thirty days") is an enumeration and invocation of the 30 divinities presiding over the days of the month. (cf. Zoroastrian calendar). The Siroza exists in two forms, the shorter ("little Siroza") is a brief enumeration of the divinities with their epithets in the genitive. The longer ("great Siroza") has complete sentences and sections, with the yazatas being addressed in the accusative.
The Siroza is never recited as a whole, but is a source for individual sentences devoted to particular divinities, to be inserted at appropriate points in the liturgy depending on the day and the month.
The Siroza is never recited as a whole, but is a source for individual sentences devoted to particular divinities, to be inserted at appropriate points in the liturgy depending on the day and the month.
