Originally, if human beings had not fallen, our mind and body, being centered on God’s love, would not contradict each other. Because of the Fall, however the mind and body came to stand in opposing positions. Therefore even if it were possible to somehow be transported to an ideal world, without each individual solving this mind-body problem and establishing a true standard of heart, living in such a world would not be ideal.
Source
P. 150, par. 4