Asakapa99

It Will Rain
If you ever leave me baby,
Leave some morphine at my door
‘Cause it would take a whole lot of medication
To realize what we used to have,
We don’t have it anymore.

There’s no religion that could save me
No matter how long my knees are on the floor
So keep in mind all the sacrifices I’m makin’
Will keep you by my side
Will keep you from walkin’ out the door.

[Chorus]
Cause there’ll be no sunlight
If I lose you, baby
There’ll be no clear skies
If I lose you, baby
Just like the clouds
My eyes will do the same, if you walk away
Every day it will rain, rain, rain...

I’ll never be your mother’s favorite
Your daddy can’t even look me in the eye
Oooh if I was in their shoes, I’d be doing the same thing
Sayin there goes my little girl
Walkin’ with that troublesome guy

But they’re just afraid of something they can’t understand
Oooh well little darlin’ watch me change their minds
Yeah for you I’ll try I’ll try I’ll try I’ll try
I’ll pick up these broken pieces ’til I’m bleeding
If that’ll make you mine

[Chorus]
Cause there’ll be no sunlight
If I lose you, baby
There’ll be no clear skies
If I lose you, baby
Just like the clouds
My eyes will do the same if you walk away
Every day it will rain, rain, rain...

[Bridge]
Don’t just say, goodbye
Don’t just say, goodbye
I’ll pick up these broken pieces ’til I’m bleeding
If that’ll make it right
[Chorus]
Cause there’ll be no sunlight
If I lose you, baby
There’ll be no clear skies
If I lose you, baby
Just like the clouds
My eyes will do the same if you walk away
Everyday it will rain, rain, rain...
Explanation:
I think the song is about, Bruno Mars telling the girl to take her back. And telling the girl how much he's suffering and dying inside without the girl in his life. (It descibes it on the 1st verse of the song)

And in the chorus, he is saying "I won't be complete without you.", "I need you.", "I miss you." or else I'll be very sad and it will feel like