Sentence:  But what I know now is that even if the feelings do return, I can wait them out, and, indeed, pain that appears to be despairing and murderous may actually contain—if I listen very carefully—a <WSD>grace note</WSD> of hope or consolation from God. 
Meaning of the word marked with <WSD> tags:  Something that decorates, embellishes, or ornaments; a finishing touch.