Its functions, so far as known, are the transmitting of light, the production of all phenomena ascribed to electric, vital and magnetic force. Ether will in the near future play an important part in the transmission of thought, not only between individuals of this world, but between astral beings and those of the physical. The transmission of thought from planet to planet would be only an increase in distance as has been done with wireless telegraphy. Molecular vibration is a law of the universe, nothing is exempt from this activity. It is universal in its application.
Progression is an established principle.
Spiritual progress towad perfection is dependent upon physical and spiritual growth. The universe is composed of spirit and matter. All living material is animated by spirit. The process of physical and spiritual growth are so intimately blended that it is difficult to separate one from the other. Astral spirits composed of supersensitive substance, inhabiting supersensible spheres are far more refined than the material of this world, yet they are undergoing a process of advancement analogous to that of individuals on this earth.