In the Vedic culture of ancient India, ghee was made on the full or waxing phase of the moon. This period of the moon cycle is known as the shukla paksha or the white part of the moon, and is considered auspicious. It is said the moon is considered to rule or control soma; the juice or essence of plants, and of life itself. In the Vedas, milk is said to be the essence of grass, and ghee is said to be the essence of milk. Therefore, the waxing moon and full moon represents the increase of this essential quality.