Third Eye knowledge

Since I've been feeling those "vibrations" and visions between my eyebrows, I feel that I want to develop more this part. It's such a strange feeling... and more I am thinking during the day about this "pressure" between my eyes, more I can feel it, even whithout meditating. The sensation just shows up...

The more interesting is that I get some very weird "visions" while meditating.  But I have to practice a lot in this field... The intensity of those "visions" can vary each day.

I also want to learn more about this "Third Eye"... Here is the latest book that I'm reading about this subject: The Third Eye by Lobsang Rampa.