I never ate any light while I was in the other world but I had a strong intuition that you could. I am certain your experience could be described in the same genre of a near death experience...I can so identify what you experienced...but it appears that you have more memories in the dark part of the tunnel than I did. All I remember in the dark part of the tunnel was like being in a big potatoe peeler...layers of the universe...layers of my material existence were flying off of me...and I was flying toward the light...What you put in your mind? that is an interesting concept...Were you feeding your mind or your spirit?
A spirit guide is a great thing to call that being. I love your imagery.