It is a brilliant composition filled with a deep sense of loss and longing. Its a sinister game which this elusive lady plays on this poor Knight who is enticed into her trap like so many others before him.
This is one of my favourite poems.. Its all about relationship, power, treachery and cruelty. He highlights the obsessive character of a duke who kills his young and beautiful wife for he suspects that she is frivolous. The potrait of the duchess made my Fra Pandolf is an epitome of beauty, grace and purity. The duke invites an envoy from a neighbourhood and subtly warns him that if he marries the new the new duchess from the envoy's kingdom, she too will meet the same fate unless she resigns herself completely to the duke. The sarcasm uttered by the duke at the end of the poem aptly portrays his character.. 'Notice Neptune taming a sea horse'
In my opinion Robert Frost has a brilliant imagination and his poems are deep rooted in spirituality. For example.. he attributes the qualities of a sensuous woman to a silken tent which has a tendency to be capricious but nevertheless is held back by firm cords to the ground just like a woman.
The poem is extremely vivid and philosophical.. The comparison made is beautiful yet subtle.