light

 never did no lord ordain

it came out as a physical process

it has meanings wide and deep

a whole spectrum of frequencies

a play of electromagnetic fields

travel as waves but as particles they hit

quantized and moving at the ultimate speed

its interactions are studied in quantum electrodynamics.

here we keep it simple

and stick to the part visible

a little question some kids may care

why don't we see the spectrum entire ?

it would be crazy, i'd be scared

for there would just be so much everywhere

but the water where eyes evolved to stare

absorbs the rest ,allows only so much in there.

light be the universal way to communicate

because throughout the space it permeates

created and annihilated as energy changes modes

it may travel for years billions without getting bored

just a tiny bit of universal energy it stores

reflects, refracts, disperses, diffracts, interferes and distorts 

knocks and stretches out as it soars

goes in and out of everything including black holes, did you know ?