The Cave of Happiness

Confined in a room where I smile
A room that full of mysteries
A room that can't be mine
And a room I called it damn

My happiness wouldn't be like this
If I can express and break my silence
My happiness wouldn't be like this
If a cave can be just like a bird

I want to go up high
I want to melt and break the line
How can I smile, how can I live
Seeing one line leading to only one open light