The Connection between the Feast of Tiregan and Rite of Lale-Shish-Zan

Most researchers believe the feast of Tiregān (Tirma-sizza-sho) is rooted in the myth of Ārash-e Kamāngīr (Arash the Archer), the rising of Tishtar (the star Sirius) and celebration of asking for rain. But, at least in Māzandarān, there is another origin for the feast of Tiregān, and that is worshipping a goddess. This goddess, according to chronology of Zoroastrianism, used to go underground in the beginning of winter and return in the beginning of summer. As the feast of Tiregān is held in the month of Aban (November), the idea seems viable. Also, in the province of Māzandarān, there is a rite called "Lāle-Shish-zan". In this rite, a person in the role of a dumb (lāl), enters the houses and beats barrens, girls of marriageable age and fruitless trees with a wood (shish). So this rite of “Lāle-Shish-zan” strengthens the connection of this vegetal goddess and the feast of Tiregān.