Blue In Blue

I was lent the blue book that I feel uneasy about
The  blue is just like the sky
with no title and no picture
Because I have not to know about the contents
So try to toss it high up in the air
Well, the blue book is drawn in the blue
and not come down any more

Anything everyday happen is like the book
Although it is nothing serious
we can not get over it and feel pain
But we forget at once
and all of them are only drawn in the sky