Christ descends from the refectory wall—leaving a terrible hole.

Cloux

March 4, 1519

I am writing very slowly now.

While painting The Last Supper I lived at the Santa Maria delle Grazie some of the time, working day after day, often sleeping on the floor, on a bench. I painted by day and at night, with the help of lamps and candles, placing lights on benches, on tables, on my scaffolding. I was altering forms, changing colors, imparting greater age to a face, lessening the impact of a gesture.

I might stay an hour, or remain for days: Ai, Matthew’s eyes might move; Luke might raise his arm; John might turn his head—or so it seemed. I was always there when the light was good; during inclement weather I might shove my key into the lock, and shut the door. A few grapes, some nuts, bread and wine... I didn’t need much food. With a basket or a bowl beside me on the scaf­folding I would go on painting.

I was forty-three.

When Christ’s model became ill and finally died, I retouched His face, imparting what I had learned while observing the dying man. I remember: to soften the shading I retouched with a lamp in my hand, holding it close to His face.

As I painted there were two dead men watching me.