This is the symbol of undying love and eternal friendship.
In a German legend, God named all the plants when a tiny unnamed one cried out, "Foget me not, O Lord!" God replied, "That shall be your name."
In another legend, the little flower cried out, "Forget me not!" as Adam and Eve left the Garden of Eden.
The Christ Child was sitting on Mary's lap one day and said that he wished that future generations could see her eyes. He touched her eyes and then waved his hand over the ground and blue forget-me-nots appeared, hence the name forget-me-not. In Italian they're called "occhi della Madonna" (Mary's eyes).
In the 15th century Germany, it was supposed that the wearers of the flower would not be forgotten by their lovers. Legend says that in medieval times, a knigh and his lady were walking along the side of the river. He piked a posy of flowers, but because of the weight of his armour he fell into the river. As he was drowning he threw the posy to his loved one and shouted "Forget-me-not!"
This is a flower connected with romance and tragic fate.
It was often worn by ladies as a sign of faithfulness and enduring love.
Slip forget-me-not into someone's pockets so that you will remain on their mind.