I love how people try to prove an afterlife by near death experiences. I would propose that the blinding light is your true nature and of all, as a spaciousness. It's like how western mystics tend to experience God's presence as outside of them. They cannot believe that it is actually their own presence. Again supposedly.
If there is some sort of reincarnation, it would be simultaneous, for time and space are one and the individual is of the dynamic system of existence, so it wouldn't be like an individual existence being reincarnated. God, I feel dirty speaking in spiritual abstractions!