I saw you 
Amidst a crowd of nameless faces 
I saw you 
And though there should have been no reason 
For my attention to be accosted,  
Somehow my gaze became soft-focus 
And homed in on your profile 
Shutting out the periphery 
As the room became smaller 
 
I saw you  
As if you were the only one around 
I saw you 
And watched as you talked and laughed 
And danced your eyes 
I listened for the strains of your voice 
But all sounds melted in the heat of the moment 
And formed globules  
Which pounded inside my chest 
 
I saw you 
And it registered on the Richter scale 
I saw you 
And shock waves caressed my senses 
And I drifted away 
Lost in long-forgotten excitement. 
But all in a moment sanity hit 
Like a cold shower 
Feelings, guilt-ridden and numbed 
Cascaded into inner blushes 
 
To the logic of the mind  
There are no excuses 
 
But the heart has reasons of its own
Bob Oldfield
http://www.poemhunter.com/poem/the-heart-has-reasons/