Thy paleness moves me more than eloquence,Sigmund Freud, in a classic essay on the "The Theme of the Three Caskets", links this choice between three to a similar choice in another of Shakespeare's plays. Lear, however, makes the wrong choice, preferring the shiny flatteries of his two elder daughters to the silent love of Cordelia, his youngest. Freud interprets Bassanio's choice between three caskets as a choice between three women as well. (For Freud -- as you might expect! -- caskets, boxes, any sort of container stands in for woman.) But the choice of the third isn't a choice: it's inevitable that the third is chosen. Freud connects both Cordelia's silence and the pale lead of the third casket with death. Death is the inevitable third. But for Bassanio, a supremely desirable woman substitutes for death, putting off the inevitable. This is the wild wish fulfillment of dreams and of all comedies.
And here choose I -- joy be the conseqence!
The wish-fulfillment woman, though, still retains something of death, and thus of the uncanny, about her. And this is something that might adhere to Portia, and make it difficult for us to picture what life will really be like for Mr and Mrs Bassanio of Belmont.