He read aloud, his dry and academic voice 
so quivering with conviction which we did not share,  
his offering for a footnote which did not require 
this amiable discursion such as only he could love;  
 
and as I sighed in inward kind despair,  
and wondered when to break his scholar's drift - 
his body turned to crystal; sculptured silver-gold 
in detail;  his familiar profile then became 
by heavenly realignment, ideal, heroic, sublime;  
his steady gaze, like some divine geometry,  
focussed on the paper which before 
had been a spiderweb of tedious, fond thought,  
was now an arrow shot at truth itself 
in love, and lifetime's care, and all humanity;  
a god who had replaced a colleague's frame. 
 
It is enough just to recall that moment's view;  
no explanation; but the whole world made anew.
Michael Shepherd
http://www.poemhunter.com/poem/0245-the-vision/