What Did I Do

I heard the voice of my friend calling;
I heard the voice of my friend crying;
I heard the voice of my friend begging for help;
And what did I do?

I saw my friend in misery;
I saw pain in his dark blue eyes;
I saw that beautiful clean clear color of his face diminishing;
And what did I do?

I saw my friend feeble and exhausted;
I saw my friend wasting;
I saw my friend a walking skeleton; 
And what did I do?

I saw my friend on a stretcher; 
I saw my friend struggling with the medics;
I saw my friend ferried from hospital;
And what did I do?

Then, I saw someone wearing a mask;
And behold, I saw the angels descending;
Only then, and only then, I knew what I did.