Delving Into the Spectral Realm

What is the spectral realm, exactly? Let's find out shall we. There are two initial meanings of the word specter:  "of, or relating to, or suggesting a specter;" and "of, or relating to, or made by a spectrum."

Arbitrarily this presents a choice, yet who is to say that in reality the two aren't blended? Perhaps apparitions are but the next phase in a spectrum (for instance). 

A specter is a visible disembodied spirit, or it's something that haunts and perturbs the mind. 

A spectrum may be defined in many ways, from a continuum of color when white light is dispersed through a prism, to any continuous sequence or range, as well as a range of effectiveness against pathogenic organisms. 

Are phantoms pathogenic?   For the purposes of our narrative, we will assume they are quite virulent. That's what makes them scary.  A spectral realm would be a region where malevolent spirits manifest in a fashion not unlike a rainbow, albeit lacking a verifiable prism, and perhaps not quite so colorful.    

It has been suggested that light itself may serve as the prism through which ghosts may be dispersed into our view.  Certain conditions with light and juxtapositions at its dimmest may bring these phantasms partially into view, yes.  But to posit that light itself may be the prism through which phantoms are dispersed to us...the question arises if that would be stretching the matter, to say the least.  Others have suggested the organ referred to as the human eye may serve as the missing prism.  We will keep that in mind as we venture deeper here.    

The definition of realm is a kingdom, sphere, or domain.  It's also used in marine geography for dividing the earth's surface.  Speaking of which, we have only scratched the definitions of these words.  Now it is time for us to dig further.  To their root sources.   

'Spectral' as an adjective goes back to early 18th century meaning "capable of seeing specters" or "pertaining to a spectrum."  The noun specter itself goes further back to early 17th century where it came to mean "a frightening ghost," derived from the French word spectre, "an image, figure, or ghost."  Whereas Latin spectrum means "appearance, vision, apparition."  

A detached fusion of these viewpoints results in a spectral realm which is both comprised of a spectrum of frequencies surrounding us, including but not limited to the one which we human beings are specifically tuned (about the 450 Megahertz bandwidth, approximately) as well as the cosmic microwave background radiation we are bathing in from radio, microwave, infrared, to right here in the midst of our visible light, and beyond into the ultraviolet, x-rays, and gamma rays.  

In this decidedly spectral realm multiple visionary viewpoints interlace into a singular tapestry we like to call "reality" but which does not exist without us, therefore rendering us the equivalent of the co-conspirators as well as the lost spawnlings of the great countenance.  
Our cosmos may be considered a realm, and in fact as it pertains to ourselves it is our ultimate kingdom.  Yet the differing phases which comprise the various spectra surrounding us suggest other vibrational dimensions which may coexist with our own continuum.  Here could easily lie the great secret out in the open for only the most dedicated followers of mystery to look up from their shoes and gaze at directly.