Hello Michael, Third eye meditation is a practice, in which you focus all your concentration at a single point.
There is a particular hand posture, that you keep, while you do the meditation. Practiced overtime, this can let you drench deep into the higher Astral realms. P.S. Third eye's concept has basically been derived from Lord Shankar (The third of Trimurthy) in Hinduism. It's said, that third eye is the root to excessive power, and sixth sense. Regards, Sanyam Shrivastava