Pope Emeritus Benedict XVI says he's coming to the end of his journey.
In a rare move, the 90-year-old wrote a public letter in which he said: "I can only say that in the slow waning of my physical forces, inwardly I am on a pilgrimage toward Home."
The letter was reportedly a response to an Italian newspaper's inquiry about how he was doing.
He resigned as pope in 2013 "due to an advanced age." He was the first pope to resign in almost 600 years.