Interpretation of Katy Perry's song "Firework"

I

"Do you ever feel like a plastic bag,
drifting through the wind
wanting to start again?
Do you ever feel, feel so paper thin
like a house of cards,
one blow from caving in?"

(Line 1,2) Have you ever felt so worthless, insignificant and a push over?

(Line 4,5,6) Have you ever felt so weak inside that anything can make you fall apart.

II

"Do you ever feel already buried deep?
6 feet under screams but no one seems to hear a thing
Do you know that there's still a chance for you
'Cause there's a spark in you"

(Line 1,2) Have you ever felt like you're all alone and no one cares for you? like a corpse 6ft under.

(Line 3,4) Don't lose hope because you have it in you.

III

"You don't have to feel like a waste of space
You're original, cannot be replaced
If you only knew what the future holds
After a hurricane comes a rainbow"

(Line 1) You aren't any less important and beautiful as anyone else in the world.

(Line 2) You are beautiful and special in your own way. The word is "Unique"

(Line 3) You never know what tomorrow brings.

(Line 4) You just have to remember that darkness only makes you appreciate more the beauty of light.

IV

"Maybe your reason why all the doors are closed
So you could open one that leads you to the perfect road
Like a lightning bolt, your heart will glow
And when it's time, you'll know"

(Line 1,2) You're not getting the opportunities you want right now, because a better one is destined for you.

(Line 3) You're despaired heart will glow(become happy)

(Line 4) In God's perfect time, everything you ask shall be given.

V

"You just gotta ignite, the light, and let it shine
Just own the night like the 4th of July

'Cause baby you're a firework
Come on, show 'em what you're worth
Make 'em go "Oh, oh, oh"
As you shoot across the sky"

(Line 1) You just have to release yourself from your inhibitions and lack of self esteem because you are this beautiful light

(Line2) You just need to believe in yourself, own your darkness because you are the only one hindering yourself from happiness.

(Line 3-6) You are not meant to be unseen , you are meant to shine, and stand out from the rest.