Black Swan twist ending

The Black Swan movie is challenging to analyze for a number of reasons. Any movie fan will find watching Black Swan multiple times turn up no additional explanations. Do you want to know the Black Swan twist ending? Ready to discover the twist in the movie? If you haven't watched the Black Swan, then beware the twist ending will contain spoilers.

***Movie Spoiler***

Nina Sayers is a wonderful dancer. She wants to become the best swan - the Black Swan. She puts on a fascinating performance, even Thomas is amazed at his Swan Queen. Nina believes she has killed Lily. She accidentally stabs Lily, and then in panic hides the body in another room. 

Nina dances swiftly and perfectly. She almost looks like a swan on the floor. Nina returns back to his dressing  room. She begins to search for Lily. Lily is nowhere to be found. Where is Lily? How can this dead dancer leave? 

There is a knock at the door. Lily tells her how wonderful she is dancing. Nina is in shock Her psychosis has worsened, causing her to have hallucinations of murdering her Lily. Thomas put pressure on Nina to lose herself. The Swan Queen must lose herself to become great. Dancing in fantasy world is the best way to lose oneself. Nina's drive to become the Swan Queen puts her life on a psychological crash course. 

We see her mind hallucinating. Nina has no idea what is real and what is not. After learning Lily is alive, Nina discovers that the broken glass has injured her abdomen. It is her that is wounded. Nina returns to dance one last time. She dances so beautifully that Thomas is amazed beyond his wildest dreams. Thomas is watching his Nina dance, losing herself to become another person. She is completing her transformation into a black swan. 

Nina is ready to make the jump onto the bed. It is the payoff ending. Thomas, the audience, and dancers await the swan. Nina jumps off the platform and lands on the bed. She completes the transformation. Thomas watched his Nina deliver the best swan performance ever. He claps along with the audience. We know Thomas is proud. 

Nina lies on the bed. She looks cold and frigid. Nina's abdomen is bleeding out profuse. Thomas and dancers discover Nina's abdomen wound is fatal. Nina dies. 

The twist ending is that Nina's mind-bending performance is her demise. We see that her devotion to transform into the black swan causes her psychosis. She snaps in and out of reality. Nina hallucinates murdering Lily, instead she accidentally injures herself. She is living in a fantasy. Her mind snaps. 

The pressure to become the black swan ends Nina's life. She is suffering from multiple Axis II disorders. Nina's poor diet, vomiting, pain, stress, pressure, and advice to lose herself send her life spiraling downward. The abdomen wound results in her dancing to a finale - the end of the show and her life.