The Holy Father appoints a man named a Bishop to a seat - a cathedra.
From that seat - cathedra the Bishop teaches the truth to all men so the truth may make them free.
But some people are Bishop-shy.
They are Bishop-shy because they are hungry, shivering, or sleepy.
They must be fed, clothed, and sheltered before they will consent to come to listen to Christ’s Bishop.
To feed, clothe, and shelter them at a personal sacrifice is to participate in the Bishop’s apostolate.