Well, just to set the story straight, on December 23, 1888, at the age of 35, Vincent cut off the lower half of his left ear. (Although a self-portrait done in 1889 shows a bandaged RIGHT ear.) He took it to a brothel, to a prostitute named Rachel, and handed it to her, instructing her to take good care of it. Merry Christmas. No, he didn't say that last part, I added that myself. One has to wonder though at his timing, perhaps he did have in mind a VERY personal Christmas gift. Actually, art historians and psychoanalysts of all kinds have pondered the "why" of this outrageous act of self-mutilation for years. In June of 1981, William McKinley Runyan published in the Journal of Personality and Social Psychology a rather lengthy list of possible reasons Vincent might have resorted to such an act. Here's just a few:
1. Frustration over his brother's engagement and his own dismal love life.
2. Self-punishment for his homosexual impulses toward Paul Gauguin.
3. A symbolic punishment for a father he hated.
4. He was influenced by the practice of presenting the bull's ear to the matador.
5. He was seeking his brother's attention.
6. He was seeking to end auditory hallucinations.
That's only about half of them, and some of the first ones are somewhat plausible. If you think some of them seem far-fetched, the rest are REALLY a stretch.