Diya (lamp)

A diya, diyo, deya, deeya, dia, divaa, deepa, deepam, deep, deepak or saaki (दीपम्) is an oil lamp made from clay or mud with a cotton wick dipped in oil or ghee. These lamps are commonly used in the Indian subcontinent and they hold sacred prominence in Hindu, Sikh, Buddhist, and Jain prayers as well as religious rituals, ceremonies and festivals including Diwali.

Traditional use
Diyas are symbolically lit during prayers, rituals, and ceremonies; they are permanent fixtures in homes and temples. The warm, bright glow emitted from a diya is considered auspicious, regarded to represent enlightenment, prosperity, knowledge and wisdom. Diyas represent the triumph of light over dark, good over evil with the most notable example of this being on the day of Diwali. Diwali is celebrated every year to celebrate the triumph of good over evil as told in the Hindu epic, the Ramayana. Diwali marks the day Rama, Sita, and Lakshmana returned home to Ayodhya after 14 years in exile, after the defeat of Ravana. According to tradition, to welcome Rama, Sita, and Lakshmana home, the citizens of Ayodhya are said to have lit up the streets with diyas. They are regarded to be associated with Lakshmi in Hindu iconography and worship.

Festivals

 * Tealight Diyas.jpg [[Diwali]]: The lighting of diyas forms a part of celebrations and rituals of the important day in the Hindu calendar. Houses are decorated with small diyas placed at boundaries and entrances. In fact, the name of Diwali is derived from the Sanskrit word Deepavali, which means the row of lights ("deep" means Diya and "avali" means row). Diwali is mentioned in early Sanskrit texts, such as the Padma Purana and the Skanda Purana, both of which were completed in the second half of the 1st millennium CE. The diyas are mentioned in Skanda Kishore Purana as symbolising parts of the sun, describing it as the cosmic giver of light and energy to all life and which seasonally transitions in the Hindu calendar month of Kartik.
 * Karthikai Deepam: Kartika Deepam (கார்த்திகை தீபம்) is a festival of lights that is observed mainly by Hindu Tamils, and also by adherents in the regions of Kerala, Andhra Pradesh, Telangana, Karnataka, and Sri Lanka. Celebrated in Tamilakam and Sri Lanka since the ancient period, the festival is held on the full moon day of the Kartika (கார்த்திகை) month, called the Kartika Pournami, falling on the Gregorian months of November or December. It is marked on the day the full moon is in conjunction with the constellation of Kartika. It corresponds to the occasion of the Kartika Purnima, though it falls on a different day due to the correction of equinoxes in the Tamil calendar. In Kerala, this festival is known as Trikkartika, celebrated in the honour of Chottanikkara Bhagavati, a form of Lakshmi. It is celebrated in the name of Lakshabba in the Nilgiris district of Tamil Nadu.

Worship and prayers
Lit diyas that are placed before deities during prayer in temples and then used to bless worshippers is referred to as an arati.

A similar lamp called a butter lamp is used in Tibetan Buddhist offerings as well.

Hindu rituals
Birth: The lighting of diya is also part of the Hindu religion rituals related to birth.

Arti (आरती) or Arati (आरति) is a Hindu ritual employed in worship, part of a puja, in which light (from a flame lit using camphor, ghee or oil) is ritually waved for the veneration of deities. Arti also refers to the songs sung in praise of the deity, when the light is being offered. Sikhs also perform arti in the form of arti kirtan which involves only devotional singing but Nihang Sikhs specifically perform arti which uses light as well.

Types


In terms of the choice of material, the kiln fired earthenware lamps followed by the metallic lamps with multiple wicks, mostly of brass known as Samai, are the most common, though other materials are also used such as patravali floating lamp made from leaves or permanent lamps made of stones.

In terms of wick design, diyas with one wick are most common, followed by the two wick style, but other variations such as four, five or seven wick lamps are also made.

In terms of overall lamps design, the ornamental lamps come in various designs. The iconic Nachiarkoil lamp, also known as "Annam lamp", is produced exclusively in by the Pather (Kammalar) community in Nachiyar Koil of Tamil Nadu.