The art of the portrait flourished in Ancient Greek and especially Roman sculpture, where sitters demanded individualized and realistic portraits, even unflattering ones. During the 4th century, the portrait began to retreat in favor of an idealized symbol of what that person looked like (Wikepedia).
But the way we used to “create” portraits 16 centuries ago is quite different from the way we “make” portraits in our technology-oriented century. We have mobile cameras (e.g. iphone) that take pictures using filter-based software (e.g. instagram), which is sent to social networks (e.g. facebook) in order to broadcast a residual image of ourselves.
"Portrait of a Poet (to Walt Whitman) depicts a classic laberynth image made out of verses written by Walt Whitman. It was initiated as a meditative work on paper an concluded as an interactive software that enables users to drag and play with the letters, words and verses.