What effect does Dalí’s visual illusion in Swans Reflecting Elephants have on the viewer?

Dali used this method to bring forth the hallucinatory forms, double images and visual illusions that filled his paintings during the Thirties. As with earlier Metamorphosis of Narcissus, Swans Reflecting Elephants uses the reflection in a lake to create the double image seen in the painting.

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by acting roughly or something dramatic happening in the story.