In Vedic philosophy, Saraswati is the goddess of wisdom.  She is often illustrated playing the sitar.  She represents both art and education.  There is an old Indian story that says if you want to have Lakshmi, the goddess of wealth, in your life, then you should pursue Saraswati.  When you do so, Lakshmi becomes jealous and comes after you to win your favor.  Saraswati is dressed in all white, the color of peace.  She is graceful and serene, enjoying the beauty of the world around her.  Saraswati is often pictured riding on a beautiful white swan, although sometimes you will see her with a colorful peacock.  Both of these symbols, as well as musical instruments, can be used to remind us of Saraswati and her attributes.  We can be sweet an effective in our communication, as Saraswati is.