Begin by sitting upright in a supportive chair.
Ensure one end of the Brock string is attached to a fixed point or held by someone in front of you.
Hold the other end of the Brock string against your nose so that the string is taught and the beads along the string are visible in front of you.
Focus on the bead furthest away, this should be in focus and all the other beads will appear double.
Hold your gaze on the bead for a few seconds, maintaining relaxed breathing and a soft gaze.
Then repeat by shifting your focus to the next bead along the string.
The bead you focus on should be in focus while the other beads appear double.
Continue shifting your gaze onto each bead in turn, working along the string from the furthest bead away to the closest bead to your nose.
When or if the bead appears as a double image, try and re-focus on the bead to regain a single image before moving onto the next one.
