Rotation was inspired by the eternal rotating movement (Galaxy) as an important metaphor in the ideas and ceremonies of the Mevlevi Sufi-order, with which I recently had very inspirational meetings in Istanbul.

In the space I mark the four directions north east south west.
I stand in the middle of the space directed north.
I turn slowly around my centre calling aloud the four words in the right
direction, amplifying my voice with my hands.
While I keep rotating and calling the words, I gradually let the words merge into each other, while at the same time I rise the pitch and lower the volume of calling.
I end up making an ongoing sound of the four vowels that flow into one another, sounding softer and higher until I am not able anymore to produce any sound.
In silence I keep rotating until I slow down till standing still.