Known as Dakhmas, or "Towers of Silence," these ancient structures have served as sacred sites for Zoroastrian funerary rituals for thousands of years. Rooted in one of the world's oldest monotheistic religions, the practice reflects a profound respect for the natural elements — earth, fire, water, and air — which followers believe must never be contaminated by the dead. Rather than burying or cremating their deceased, Zoroastrians traditionally offered bodies to the sky itself.
The architecture of the afterlife
Dakhmas are typically circular stone towers, built atop hills or elevated terrain far from inhabited areas. Their height was deliberate — the elevated position allowed vultures to descend freely, and ensured the remains would not contaminate the sacred earth below. The interior of the tower is divided into concentric rings: the outermost for men, the middle for women, and the innermost for children. This arrangement was not incidental; it reflected a structured cosmological order, guiding the soul's transition from the physical world.
The ritual of sky burial
When a Zoroastrian died, the body was carried to the Dakhma by a designated group known as Nasselars — corpse-bearers who were among the few permitted to handle the dead. Mourners followed at a careful distance, walking in pairs and holding a cloth between them, symbolising a shared connection with the deceased. Once placed on the tower, the body was exposed to the sun and to vultures, which consumed the flesh within hours. The remaining bones were left to bleach in the sun before eventually being swept into a central ossuary pit, where lime accelerated their decomposition.
Why exposure — not burial
The reasoning behind sky burials runs deeper than practicality. In Zoroastrian theology, the human body becomes impure at the moment of death, possessed temporarily by Nasu — a demon of corruption. To bury or burn a corpse would be to defile the sacred elements. Exposing the body to scavengers was considered the most spiritually responsible act, returning matter to nature without desecrating earth, fire, or water. Vultures, far from being symbols of ill omen, were regarded as agents of purification.
The soul's journey in Zoroastrian belief
According to Zoroastrian scripture, the soul lingers near the body for three days following death. On the dawn of the fourth day, it crosses the Chinvat Bridge — a cosmic threshold that widens for the righteous and narrows to a razor's edge for the wicked. The soul is then greeted by its own conscience, which appears in the form of a beautiful maiden or a hideous hag, reflecting the moral weight of the life lived. This judgement was not the province of a distant god, but an intimate reckoning with oneself.
Modern challenges to an ancient practice
The tradition of sky burial has faced significant challenges in the modern era. Urbanisation has encroached on many Dakhma sites, and a dramatic decline in vulture populations — largely attributed to the veterinary drug diclofenac, which is lethal to vultures — has rendered the process far less efficient. In Mumbai, home to one of the largest Parsi communities in the world, debates around the use of solar concentrators as an alternative have divided the community. For many, altering the ritual feels like a rupture with something irreplaceable.
A living tradition worth understanding
The Dakhma is more than a curiosity from the ancient world. It represents a coherent philosophical system — one that takes seriously humanity's relationship with nature, death, and moral accountability. As Zoroastrian communities continue to navigate the tension between tradition and circumstance, the Towers of Silence remain powerful symbols of a faith that has endured for millennia. To study them is not merely to examine the dead, but to understand how a civilisation chose to honour both life and its inevitable end.
