When I left Shodokan Honbu the first time (after a three year period studying there) I was given a copy of the scroll. The large one is not at the shomen at Shodokan Honbu but to the side - but it is big.
I scanned the scroll and have it displayed on my site. Go to the Aikido site (address below) and then click on the white Shodokan gif.
The phrase means no mind no stance and reflects both the physical and mental distillation of how Kenji Tomiki saw his budo at the highest levels.