Man and Nature: Discovering the “Chelleh-ye Tabestan”

A journey into the ancient Persian tradition that celebrates the triumph of the sun.

A journey into the ancient Persian tradition that celebrates the triumph of the sun, between purifying rituals and a profound respect for the rhythms of the Earth.

Many know the charm of Persian winter nights, but perhaps not everyone knows that in Iran even the height of the warm season is accompanied by a celebration full of magic and meaning: the Chelleh-ye Tabestan.

To understand this holiday, we must start from its name: the word Chelleh derived from Chehel, which in Persian means "forty". This holiday represents the ancient Iranian celebration of the summer solstice (June 21) and marks the beginning of the forty hottest days of the year in the ancient Persian calendar. It is the perfect mirror image of the well-known winter festival of YaldaWhile the latter celebrates the longest night, the summer Chelleh celebrates the absolute triumph of light and sun. After these first forty days, right at the beginning of August, the countdown for the so-called "Little Summer Chelleh" begins, a second phase that gradually leads to the end of the season.

In Iran, celebrations for this holiday take place entirely outdoors and revolve around communal rituals of purification and joy. To find relief and symbolically counteract the summer drought, people gather near rivers and springs to bathe and splash each other with water, a propitiatory gesture to invoke rain. At sunset, the landscape lights up: large bonfires are lit on the hills and rooftops to pay homage to the power and warmth of the sun. Meanwhile, communities gather to share songs, dances, and refreshing traditional foods, including watermelon, melon, and yogurt and herb specialties.

The heart of this holiday lies in the ancient Zoroastrian concept of harmony between humanity and the natural order. Humans do not seek to dominate the elements, but adapt to the Earth's rhythms, celebrating and respecting even the harshest seasons. Through the veneration of sacred water and thanksgiving for the first harvests, the festival becomes a true pact of reciprocity with the cosmos, where humans recognize themselves as an integral and inseparable part of nature.

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