A Rainbow is… 
 
An undeniable natural beauty,  
Appearing mysteriously,  
Seven colors of grandeur rare. 
Light touching droplets in the air,  
From earthly showers or water spray,  
Opposite the sun, observed at day. 
 
Arrayed in brilliant colors glow,  
Canvassed as a beauty bow;  
Red, orange, yellow, green,  
indigo, blue, violet, all are seen. 
A sign of God’s mercy we know,  
Since earth beheld the first Rainbow. 
 
 
Rainbows are  
Amazingly  
Indescribable!  
Naturally  
Beautiful!  
Observably 
Wonderful!  
 
Not reproducible by mortal man,  
Created by our Maker’s hands;  
As breathlessly we stare,  
A masterpiece, none can compare. 
More than treasured pots of gold,  
All this and more in the Rainbow.
Loyd C. Taylor
http://www.poemhunter.com/poem/a-rainbow-is/