What is symbolic about Santiago stopping 5 times to rest when carrying the mast?

If you subscribe to the theory that there are references
to Christianity throughout the story, the number five could be related to the five
piercings of Christ's body during the crucifixion - two hands, two feet, and in his
side.  The mast, as part of Santiago's boat, was critical to the return of Santiago and
the skeleton of the marlin to port, as the death of Christ is the centerpiece of the
Christian faith.  The carrying of the mast could also be a parallel to Christ carrying
the cross to his crucifixion and the pauses along the way.