Two swans are depicted on the left side of the Goddess. A swan is said to have a sensitive beak that enables it to distinguish pure milk from a mixture of milk and water. A swan, therefore, symbolizes the power of discrimination, or the ability to discriminate between right and wrong or good and bad. Saraswati uses the swan as Her carrier. This indicates that one must acquire and apply knowledge with discrimination for the good of mankind. Knowledge that is dominated by ego can destroy the world.

It has been the fact that the Conveyance (VAHANA) attached to each God or Goddess has some correlation between them....as Such SWAN being the conveyance of MAA SARASWATI being the GODDESS of KNOWLEDGE symbolises that the knowledge is identified being the pure & whitest object like the color of SWAN and is the only power that can discriminate between NOBLE & EVIL as like the SWAN can discriminate between the MILK & WATER .... itz nothing but a correlation of the characteristic activity of the GODDESS with her respective conveyance....

Clean white