Pansy (Viola x Wittrockiana) is just an English way of saying the French word “pensée,” which means thought, and people used to send these flowers for their nearest and dearest to remember them by.
This little flower with the smiling face was said to be a love potion, and was the cause of Titania falling in love with an ass in A Midsummer’s Night’s Dream. It has also been called Herb Trinity, because there are often three colors in the one flower, reminding us of the Holy Trinity.
Perhaps the best known of the names, however, is Heartsease, for it was believed that carrying the flower about with you would ensure the love of your sweetheart.
~ The Language of Flowers