Often lots of people's third eye are not open because they are blocked. The third eye is a sixth chakra but connected to the first, second and third chakra's and blockages in this lower chakra's will also cause a blockage in the sixth. Oftentimes, the cause of blockages are fear and disbelief, though Tibetans and Indian yogis believe third eye is blocked for past life karma . Some people refuse to believe that they are blessed with a sixth sense while others are anxious of the images they might see once they have opened theirs.
This is a 65 minute dancing meditation in three stages, with specifically created music. Disappearing in the dance then relaxing into silence and stillness is the route inside for this method. "Forget the dancer, the center of the ego; become the dance. That is the meditation.
The rope technique outlined here works nicely:
http://www.astraldynamics.com/library/?BoardID=65
But as you describe yourself as very spiritual, I’d also like to suggest something far deeper too…(also available on CDs):
http://www.monroeinstitute.com/program.php?program_id=8
If you are very spiritual as you say, I would believe that you already possess all the needs of your spiritual life.
Pharmaceuticals.