"I confess, I do."
"You should know then, that what men define as density of the earth, is but an average value, which is much higher than that exhibited by materials in the surface layers of the earth crust, such as come within the scrutiny of man. This fact allows mortals of upper earth but a vague conjecture as to the nature of the seemingly much heavier substances that exist in the interior of the earth. Have men any data on hand to show exactly how matter is distributed below the limited zone that is accessible to their investigations?"
"I think not."
"You may safely accept, then, that the earth shell I have described to you embraces in a compact form the total weight of the earth. Even though men take for granted that matter fills out the whole interior of our planet, such material would not, if distributed as on earth's surface, give the earth the density he has determined for it."
"I must acquiesce in your explanations."
"Let us now go a step further in this argument. What do you imagine is the nature of those heavier substances whose existence deep within the earth is suggested by the exceedingly high total density observed by man on upper earth?"
"I am unable to explain, especially as the materials surrounding us here, seemingly, do not differ much from those with which my former life experience has made me acquainted."
"Your observation is correct, there is no essential difference in this regard. But as we are descending into the interior of this globe, and are approaching the central seat of the shell of energy, the opposing force into which we plunge becomes correspondingly stronger, and as a consequence, matter pressed within it becomes really lighter. Your own experience about your weight gradually disappearing during this journey should convince you of the correctness of this fact."
"Indeed, it does," I admitted.
"You will then readily understand, that the heavy material to which surface-bred mortals allude as probably constituting the interior of the earth, is, in fact, nothing but the manifestation of a matter-supporting force, as exemplified in the sphere of attractive energy, the seat of which we are soon to encounter on our journey. Likewise the mutual attraction of the heavenly bodies is not a property solely of their material part, but an expression in which both the force-spheres and the matter collected thereon take part.