Love Locks

Ever wonder about the Love Locks on bridges?  
One would guess they contain everlasting love,  
Two star-crossed lovers pledging
Their eternal ever-after.  
The keys thrown into the water,  
Forever guarding their intimacy,
Now, sealed by an unbreakable vow.  
 
But locks and keys have a greater power.
What secrets lurk in those locks?  
A promise, maybe a moment  
To be remembered and sealed,  
The key tossed into time.  
 
For some secrets are best kept unknown,  
But treasured for the passion they witnessed.  
Secured in the safe confines of the lock,  
The key relinquished into the void of love  
That is never to be found again.