Vasant Panchami is sometimes referred to as Saraswati Puja. Saraswati is worshiped since the Vedic times as a goddess of knowledge, arts, literature, music, painting and poetry and is often mentioned in the Rig Veda and Purana as a river god.
The hymns of the Rig Veda dedicated to Saraswati mention her as a mighty river. The most popular theory about it is that this ancient river was formed by the old route of the river Yamuna, which flowed for a distance parallel to the river Indus on the bed of the river Ghaggar-Hakra, going to flow into the Rann of Kutch, which at the time was part of the Arabian Sea.
Along the course of Sarasvati would then be created and developed the Harappan civilization and Saraswati-Sindhu. The oldest traces of writing notes in India have been found in the ruins of their cities that lined the ancient waterway. It has been suggested that the proper role of the river in the development of written language to have inspired the association of the goddess as the personification of knowledge and the arts of communication.
Between XX and XVII centuries BC, the river changed its course due to seismic activity along its route, and the Yamuna became a tributary of the Ganges, the Indus and some of its tributaries flowed, greatly reducing the water flow of the river; following the movement of the river, a large part of the population inhabiting its banks moved into the valley of the Ganges.
The later Vedic texts speak of the river that disappears at Vinasana literally, the disappearance, and flows into the Ganges as an invisible river. According to some interpretations of modern sacredness of the Ganges also derives from the presence in it of the waters of the ancient river Saraswati, the giver of life.
Saraswati is often depicted as a beautiful woman dressed in white, often seated on a lotus white or its vehicle vahaan, a swan is associated with the white color because of the purity of true knowledge, but also occasionally to yellow color of the flowers of mustard , which bloom in the period of its festivities. She is not generally adorned with jewels as Lakshmi, and indeed is often seen in austere outfits.