The Cathedrals of the Underground Church

Is the Underground Church really a church?  Where do they meet?  Who is in charge?  Do they have the funds, building, education, training necessary to be a church?

In his book Tortured for Christ Richard Wurmbrand writes,
Men with such ordination [men who said they were ordained by the Holy Spirit], who have never had any theological training and who very often know little of the Bible, carry on the work of Christ. 
It is like the Church in the first centuries.  What seminaries did those who turned the world upside-down for Christ attend?  Did they all know how to read?  And from where did they receive Bibles?  God spoke to them. 
We of the Underground Church have no cathedrals.  But is any cathedral more beautiful than the sky of heaven to which we looked when we gathered secretly in forests?  The chirping of the birds took the place of the organ.  The fragrance of the flowers was our incense.  And the shabby suit of the martyr recently freed from prison was much more impressive than priestly robes.  We had the moon and stars as candles.  The angels were our acolytes who lit them. 
I have found truly joyful Christians only in the Bible, in the Underground Church, and in prison.
* For more resources and information about persecuted Christians and the Underground Church visit Voice of the Martyrs (