As Pope John Paul II appears ever more frail and feeble, Catholics around the world are asking: is he still at the helm of his billion-member church?
And is there any value left in papal trips if Parkinson's disease and the inability to walk overshadow his message?
The answers, like the church itself, are multi-tiered.
"He is still in charge," insists one Vatican cleric. "He is not just rubber-stamping things. Things are done at a slower pace but no-one is pulling the wool over his eyes."
Even when he was in good health, the pope was never a micro-manager. From the start, he appointed like-minded aides he could trust and delegated the details to them.
Much of the Vatican bureaucracy runs on automatic pilot, producing documents and suggesting appointments, but the pope still has to sign off -- literally -- on many of them, even if with a trembling hand.
In his reign, 25 years old on Oct. 16, the 83-year-old Polish pope has done more than most pontiffs hoped to do.
He was a key player in the collapse of communism in eastern Europe in 1989, revolutionized relations with Jews, made more saints than all of his predecessors combined and traveled vast distances to preach his message in every corner of the globe.
Like any reign in its twilight, John Paul's final years have begged comparison -- some say unfairly -- with his vibrant past.
"Is he taking as much initiative as he did before? No. But on the other hand one has to ask: 'What is there left to do? How much more initiative can he take," one source said.
Popes normally rule for life, even if they are ill. But how healthy does the pope have to be to run the church?
Enough to communicate one way or the other, aides say.
"He is slower, not as inquisitive. A lot of people have been around him for so long that he can start the sentence and they can finish it. But that does not mean that the other people are pushing their own agenda," the Vatican cleric said.
IRAQ WAR
Vatican officials point to the war in Iraq as an example.
The pope held the baton for the Vatican's opposition to the war and he was the one who decided to dispatch cardinals to Iraqi leader Saddam Hussein and President Bush to avert the conflict. But aides did much of the rest.
Had he been younger or in better health, he might have gone to Washington and Baghdad himself. While such a gesture would have been more dramatic, the Vatican's opposition to the war was no less clear because he could not move.
More recently, it was he who made the final decisions on the appointment of 31 new cardinals last month.
While the pope is still taking up the baton for the major issues, some lower level bureaucrats in the Vatican say they sometimes feel stagnation in their offices.
"In some departments, there is an eerie sense of one hand not knowing that the other hand is doing," another source said.
A number of key figures who have passed the retirement age of 75 are still in their jobs, including Secretary of State Cardinal Angelo Sodano, doctrinal head Cardinal Joseph Ratzinger and Cardinal Edmund Szoka, the governor of Vatican City.
"Maybe he does not want to leave his successor with younger people in key places," the source said. "The next pope will probably want to appoint his own team."
Others have speculated there may be a reshuffle of some top Vatican positions after the celebrations of his anniversary wind up with the creation of the 31 new cardinals on Oct. 21.
THE END OF TRAVEL?
Another question Catholics are asking -- and the Vatican is studying -- is can the pope, should the pope, continue to travel?
When is the line crossed between when there is symbolic value in Catholics seeing him carrying on despite his suffering and when the pain of them watching it blots out the message?
"This will have to be taken into consideration the next time a decision is made on trips," a Vatican source said. "Movement is difficult, speech is difficult."
And what happens if the pope became severely disabled?
Popes usually rule until they die. No clear regulations exist if a pope is alive but incapacitated for a long time and none deal with what to do if a pope can no longer communicate.
"The ability of modern medicine to keep the body alive while the mind is deteriorating will eventually present the church with a constitutional crisis," said Father Thomas Reese, historian and editor of the U.S. Jesuit weekly journal America.
There have been unconfirmed reports over the years that Pope John Paul has prepared a resignation letter to be used in case he became severely incapacitated and unable to rule.
While there is a provision in Church law for popes to retire, every time talk of retirement has come up in the past, John Paul has said he wants to stay on as long as God wants.
The last pope to resign willingly was Celestine V, who stepped down in 1294. Gregory XII reluctantly abdicated in 1415 when there was more than one pope reigning at the same time.