Langar is the provision of free food to the needy in a religious context. Its origin is from Sufism (Islam) because serving of food to the needy has been a rich tradition in Sufism, especially of the Chishti Order. There is extensive use of free food imagery and metaphor in Sufi writings. Sugar and other sweet foods represent the sweetness of piety and community with God, while salt symbolizes purity and incorruptibility. Through the pronouncement of Bismallah during the bread-making process, the bread is imbued with spiritual power or barakat, which is shared by those who eat the bread. The transformation of the raw wheat to finished bread is used as an analogy for Sufi spiritual development.