G,day rodentmouse
I don't think it helps in concentration,maybe helps with visualisation,but definately helps with OBE's,maybe not at first,but after it has been exercised daily, it will help in most area's of interest in developing psychic ability/s.
Someone else might say that it does help them with concentration & visualisation,it's very subjective.
Good journeys mate
Mobius
i think the brow is one of the most important ones to meditate on, according to the eastern meditations i have done.
rodentmouse
ditto what the others said, the brow chakra is actually the front part of the crown chakra, or midbrain. Storing chi in the midbrain is one of the higher tantric exercises. Once your midbrain can handle the energy though, because too much can lead to delusions and paranoia.
When you are able to handle the extra chi you can push it out of your brow for visioning and out through the top of your head for astral travel and OOB.
Astralc
www.shoal.net.au/~astralc
does anyone know if stimulating the brow chakra helps concentration or visualisation??? or apart from energy storing has any other "use" in being able to OBE