and you smply might just try wearing a headband across eyes.. I make one that the folds will allow me to add the crystal or gemstone of my choice into the fold so it is laying against my third eye.
and also wear a pair of earmuffs or put in a pair of earplugs. simple cotton balls may work also.
that will turn off the outside influences of light and sound.
then the OM vibration is totally within and easier to concentrate on its vibratory sound and feel
just my thoughts on this
Just curious is this a home brew remedy? What crystal do you recommend?
Estebando