Meditation and white lights

Hi, In the practice of third eye meditation in which I roll the eyeballs up to the forehead and concentrate and meditate in that state, I felt it was easier to forget my physcial body, I dont feel it anymore. I tried many meditation techniques and breath techniques but no one helped me to forget the body as this simple practice. Sometimes in a chair or sometimes on my right side in bed. Not only I felt no body sensations after some time but when I roll up the eyeball while maintaining the eyes closed, my mind itself gets automatically very concentrated and not moving much. After 30 minutes or so, I start to see like white circles forming and dissapearing and then deeper like white lights switching on and off when I could reach some true stillness and forgeting bodymind. WHen I see such lights even for one or so seconds I feel I have refreshed waters or vapours. One time my vision became all white for a second and felt it in my body and mind. These white lights are prana going upward or doing frictions on the eyeballs?

I think if someone have unbroken celibacy it helps and if not, the lights dont appear and the mind become tired of doing such practice. With this practice after some weeks, someone could easily forget body, at least for me it worked. Thanks