Her works display her multiple identities and different dualities (sun-moon; man-woman; life-death, etc.)
This photo of Frida Kahlo was taken by her lover Nickolas Muray. In this picture she wears the earrings that Pablo Picasso gave her as a token of his affection when she was in Paris for her exhibition in 1939. These earrings also appear in a self-portrait that she gave to her beloved friend Dr. Eloesser.
On the Mexican side of the border we see the sun and the moon. On the American side the American flag levitates amid clouds of smoke spewed by the chimneys of a factory. There are also skyscrapers that contrast with the partially-ruined pre-Columbian temple on the Mexican side, where we also find pre-Columbian fertility idols and plants with visible roots. Frida stands on a pedestal facing the Mexican side, a flag in her hand, as if she were trying to protect her native country from the shadows of industrialization.
Originally her name was "Frieda". In solidarity with the Jews she got rid of the letter "e" with the rise of Nazism.
Frida witnessed the suffering of republican refugees from the Spanish Civil War and arranged for 400 of them to immigrate to Mexico.
The Two Fridas (1939) was completed after she divorced her husband, Diego Rivera. One of the Fridas -- the rejected one -- has a broken heart and is trying to stop her blood from dribbling. This appears to be futile; blood continues to spill over her white dress. The other Frida has an intact heart and a picture of her former spouse, whom she would remarry a year later.
The two women clasp hands, hinting at the idea that she was her most reliable source of comfort and support.