Blessed Rainy Day is a public and religious holiday celebrated in Bhutan during the rainy season, typically in September. It marks the end of the monsoon season and the beginning of the harvest season. On this day, all natural water resources in the country are considered to be sanctifying and citizens are encouraged to take an outdoor bath to be cleansed of “bad deeds, obstructions, and defilements” and accumulated bad karma. Families traditionally gather for a meal of thup (porridge) at breakfast time. The most auspicious hour for the ablution is determined by astrologers in the service of the Je Khenpo, the chief abbot of the country. They refer to the Bhutanese lunar calendar, but the exact method of their calculations has not been disclosed. Citizens who are unable to bathe at the exact hour instead often rise before dawn for a brisk morning splash. Blessed Rainy Day is a unique and important cultural holiday that celebrates the natural resources of Bhutan and encourages spiritual cleansing and renewal.