Every Cloud Has A Silver Lining?

What the heck does that mean?  I heard it on the radio yesterday.  I know it has to deal with "things getting better" but where does it come from?  Do clouds really have silver linings.  

Let me "google" it...

Webster says

Etymology: from the "every cloud has a silver lining": a consoling or hopeful prospect

Wiki says

The orgin of the phrase is  trace to John Milton's Comus (1634) withe lines, "Was I deceiv'd, or did a sable cloud/ Turn forth her silver lining on the night?"

So I guess things will get better and they have.  I realize I didn't do so bad.  I accumulated a 3.3 GPA.  That is something to be proud of it could have been worse.  I held my weight and got a couple of A's in some classes.  I am not a dumb person.  

But at the end of the day, I believe the really question is if I really want to be a nurse.  Is that what I am being called to.  God where are you calling me?  What is my calling?  How can I use the gifts you have given me to benefit everyone? Tell your servant.  I want only to do your will...your will

Our Father who art in Heaven

Hallow be thy name 

Thy kingdom come 

Thy will be done...