This spirit part of man contains the seat of the mental faculties and reasoning powers, and uses the organs of the material body to manifest these attributes. These faculties live and exist even though the physical body may be in such imperfect condition that the spirit may not be able to make its manifestations in such a way as to enable the mortal to perceive or sense the material things of nature. Even though the material organs of sight may become impaired or destroyed yet in that spirit body, which is within the physical body, exists the actual sight just as perfectly and completely as if these impaired or destroyed organs were doing their functioning; and the same is true as regards the hearing and the others of what are called the five senses of man.