The discoverer of the system of Christian Science makes it very clear that the Bible, beginning at Genesis defines two types of Man, one who sins, lives, dies and is from a mortal starting point.
The other is that of immortal reflection of God and Man in the higher sense, with everlasting and healing abilities, reflecting his maker in total, the expression of which can be discovered anew.
The first one then, cannot be bettered, worked with or healed, it is nothingness.