Oedipus Rex is innately Freudian just in name, let alone in content. The Oedipus complex is one of the most well recognized components of Freud's theories
and it is seen in this work names after it in many ways. The first is through the process of condensation. This can be seen as the bird headed man, which shows up in many of Ernst's images: the association
in this image between the man and the bird is the desire of man to be free from the inhibitions imposed upon him by society, and despite the fact that these two still retain their separate identities, they
are consistent with Freud's ideas. In the case of this work, the head is removed from the body, showing a detachment from true feeling and true understanding of life. Another Freudian idea is the use of the joke, which
is seen in the treatment of several of the objects in this work. Such as the contrast and juxtaposition of the wall, the over-sized fingers, upside down eyes on the birds, and the balloon in the aft
of the painted collage. Several other associations relating this work to Freud can be drawn as well.
This work has intense sexual undercurrents. The nut represents the female and the crack in the nut is a symbol for the vulva. The cracking of the nut by the hands of a male is a metaphor for sexual intercourse and also gender roles in traditional patriarchal cultures. The idea of the treatment of woman and of her place within society is also visible in another piece by Ernst, The Tottering Woman. In this piece, he addresses the constraints in which woman are held in the world and the patriarchy that she must deal with on a daily basis. It also touches upon the objectification of woman as well. Hoffman also theorizes that the squeezing of the nut has implications of sadomasochistic roles as the nut is being dominated and crushed, the spike is punishing the hand equally and finally, once forced open, the "nut" could always snap back shut, injuring the index finger and thereby is a signifier of neurotic sexual attachment. The bird head in towards the back of the picture plane is tethered by some sort of rope, which could be seen as societal restrictions on deviant sexuality and possibly is a reaction to the taboo associated with incest. Additionally, the arrow as it pierces the shell of the nut could be seen as a phallic signifier or also as a representation for the idea of love and then a refutation of the existence of love within the constraints of sexual desire and sexuality. The imagery in this piece by Ernst is intensely psychosexual in nature and content and can be seen mostly in those terms.
In defense of picking Oedipus Rex to write about in the context of collage, it is true that it is an oil painting, but its imagery was taken from print sources and then was transposed into the work by the act of painting them. The nut squeezing image was taken from an article entitled "Experience sur l'elasticite, faite avec une noix," from the popular 19th century French Magazine La Nature.