Fish Tank

I must be dreaming if happiness comes knocking one day.
People are always describing wonderful thing like this:
"The sky such blue like dream."
"Feeling like I am living a dream."

And I'm confused with it day by day.
Let me be dreaming all the time,
That's all i want.
And I confused with it day by day
Never never wake up,
That' all i want.

But dream is dream(with a sigh),
There is always a sorrow moment waiting for me.
Never be end less.
If I were a fish,dream is water.
So what is the fish tank and why do i need a fish tank?
I think i am completely mad.

And I'm confused with it day by day.
Let me be dreaming all the time,
That's all i want.
And I confused with it day by day.
Never never wake up,
That' all i want.