It took him four years to finish the portrait and did not want to hand it over to Zontondo (the wealthy, Mona Lisa's husband) or anyone else. When he was invited by the French king, he took the portrait away from Italy to France. Leonardo da Vinci died in France, which is why "Mona Lisa" this picture in France sake. For centuries, people have been talking about her mysterious smile, her smile is indeed mysterious: it seems to change. Different viewers or at different times to see, feelings seem to be different. Sometimes she felt comfortable and gentle smile, and sometimes appear serious, and sometimes like a little sad, and sometimes even ridicule and ridicule. In a picture, the change of light can not be as big as the difference in sculpture. But in Mona Lisa's face, the dark shadow of the time when the trap for her eyes and lips covered with a veil. And people smile mainly in the corner of the eye and mouth, Da Vinci is partial to these parts painted looming, there is no clear boundaries, so there will be this elusive "mysterious smile." There is a story about this picture. When Leonardo da Vinci was painting for Mona Lisa, a musician was asked to play beside her so that she could sit patiently and calmly like a model. The look in her eyes told us she was listening. And now, if we look at her beautiful hands and consider them with her face, we will feel more sincere. Her right hand gently on the left hand, the middle finger does not have any backing, we feel it is the rhythm of the music and gently beat. When we look at the scene behind this vivid portraiture, we are astonished at the untrue background. Mountains, roads, bridges, water in a fantastic, floating uncertain atmosphere appeared, as if to prove Mona. Lisa's thoughts immersed in a dream world.