Breath

I found this while flicking through quotes, so have scheduled it ahead to surprise myself later!

from a Japanese master, 

- Everything in heaven and earth breathes. Breath is the thread that ties creation together. When the myriad variations in the universal breath can be sensed, the individual techniques of the Art of Peace are born. Consider the ebb and flow of the tide. When waves come to strike the shore, they crest and fall, creating a sound. your breath should follow the same pattern, absorbing the entire universe in your belly with each inhalation.

~ Morihei Ueshiba.