can be known, there would be an absolute bar to any progress in things higher than the grosser material, for only the natural and external fact is subject to scientific proof.
How thoroughly the limitations of scientific proof would forbid progress and dwarf faculty, can be appreciated only by those who recognize that there is a mind higher than the natural part of man that deals merely with natural science and ponderable things, a mind to which the invisible and spiritual are as real and comprehensible as matter is to the corporeal senses. The existence of faculties that perceive and handle spiritual things as the senses do material things, makes the natural mind the mere handmaid of the higher and interior mind, in the power of which it is a menial servant doing on the material plane the bidding of the man himself.
It is not because spiritual things are uncertain and vague that science does
