Hindus across the world are celebrating Diwali. The five-day festival of lights is one of the most popular holidays in India, and Thursday is the main day of festivities, when the faithful pray to the Hindu goddess of wealth.
People celebrate Diwali by lighting little earthen oil lamps to mark the victory of light over darkness.
What the holiday signifies
Diwali, or Deepawali, gets its name from the Sanskrit word deepavali, which means "row of clay lamps." Many people in India will light these lamps outside their homes to symbolize the inner light that protects them from spiritual darkness, in tune with a holiday that is an ode to the triumph of good over evil.
Hindu celebrations center on the return of Rama and Sita, two deities, to Ayodhya, an ancient city in India, after being exiled. Sikhs, Jains and even Buddhists have their own lore surrounding the holiday — you can read about it here.
The holiday overlaps with the Hindu New Year and as a result is associated with a chance to reset and start anew.
The course of the five days includes cleaning house, buying new furnishings and exchanging gifts with loved ones. It also centers on traditions such as buying new kitchen utensils to help bring good fortune, as well as other practices to attract the goodwill of spirits.
What the festivities look like in India
In the northern Indian temple town of Ayodhya, authorities lit about a million such lamps along the banks of a river.
Ayodhya is believed to be the birthplace of the Hindu god Lord Ram, and Diwali is said to be the day he returned home after defeating a demon.
Across India, celebrations include fireworks and devotional music.
But amid the festivities, there are also concerns about air pollution caused by Diwali firecrackers.
Already, pollution in the capital, New Delhi, has risen to its worst this season.
More than 1 billion Hindus observe Diwali worldwide. NPR's Sushmita Pathak and Michael Zamora provided this video report:
Sushmita Pathak reported from Mumbai; Manuela López Restrepo is based in Brooklyn, N.Y.
Separate versions of this story appeared on the Morning Edition live blog.
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