One word. Wow.
There is an old meditation in the sikh community and through out Asia called meditation on Light and Sound. You will find many explanation on the net. And what you have experienced, the way you described it, looks like you have reach illumination through this technique.
Many are doing it since many years and have never experience it, hehe.
Funny thing about your post is that I just made a thread about ways to shield our mind from mental manipulation.
http://www.projectavalon.net/forum/s...ead.php?t=5697
And i must say, your post just fits in it, like an answer to my thread. I'll try it.
Namaste, Steven