Blessed are those who are persecuted because of righteousness, for theirs is the kingdom of heaven. Matthew 5:10 NIV
The scepters, staffs and maces carried by monarchs and high priests alike occur with such frequency in the history of bygone eras as to suggest that at the very least these items are aspects of some type of archtypical symbol which the human mind seems to appreciate, perhaps quite subliminally.
However, in the Hemi-Sync application of the technique external light sources are not involved but, rather, the mind is the sole agent of the healing and revitalization.