Tongue Tied

My tongue is tied in knots
My page is full of scribbles
I know what I want to say
I just can't find the words
I stutter and stumble
Write, erase, rewrite
Struggling in vain to make you see

The words start to come
But they're not the right ones
The picture is still blurred
I know I know the word
It dances on the tip of my tongue
Taunting me, but eluding my grasp
Other words try to replace it
But they are still wrong
It is that one magic word
That holds the key to my world