Sentence:  Expressed differently : if the price for becoming a faithful follower of Jesus Christ is some form of self-destruction , whether of the <WSD>body</WSD> or of the mind - sacrificium corporis , sacrificium intellectus - then there is no alternative but that the price remain unpaid . 
Meaning of the word marked with <WSD> tags:  the entire structure of an organism (an animal, plant, or human being)