Pen to Paper

Writers, have you ever noticed this?

You'll sit down to write, the notebook and pen - or perhaps laptop - in front of you, and you'll stare into space. You can do this for hours, thinking about what you want to write and what you want to get accomplished with this bit of writing, and it will all seem so clear in your mind.

However, when you put the pen to paper, it all flows away and nothing will come out right.

I highly doubt that this phenomenon is solely mine.