Mona Lisa’s smile is a mystery no more.
She smiled beacause We were there. Let you have on your knees 10 kilos of the immeasurable grandeur and have no smile.
Afterwards Leonardo reluctantly painted out Our image. He was afraid of the reaction of the art criticists and gallerists who were normally treating the pictures with cats as not serious.
But the smile of Mona Lisa remained on the painting.
That is the true story.