Alice Bailey channeled Ascended master Djwal Khul

who has said that there would be many inventions in the future using Light and Sound.
We would have a highly developed etheric vision. We will talk the language of light and
we will think with light. Thought would direct light and scientific discovery would validate the scale of light vibration. Would it not be wonderful if we could see the astral worlds, see our loved ones? Would you notlike to communicate with Ascended Masters who would convey their teachings, love and wisdom through the language of light? Sound and light that emits the necessary energy of sound into a chemically useful form. Does this sound far fetched?