Vijnana Bhairava Tantra · Dharana 61 · Verse 84
Gazing into clear sky
Look into a clear, open sky with a steady, unbroken gaze, keeping the body still. Let the edges of the body matter less than the space they sit in. You are not leaving the body. You are letting the sky be large enough to include it. (Look at open sky, never at the sun.)
Older line
Gaze steadily into the clear sky, keeping the body perfectly still, and in that very moment, O Goddess, you take on the form of Bhairava.