Gullivers voyage to the land of Houyhnhnms constitutes the height of Swift's irony. Discuss in detail

Gulliver has come to love the Houyhnhnms, their society, and their way of living. He writes, "I had not been a Year in this Country, before I contracted such a Love and Veneration for the Inhabitants, that I entered on a firm resolution never to return to human Kind, but to pass the rest of my Life among these admirable Houyhnhnms in the Contemplation and practice of every Virtue." The horses that we subjugate in our society are enlightened in Houyhnhnm society while people in Houyhnhnm society are the animals.