Since this forum us not active so, I have created a facebook group named "BK rajyoge meditation Success". If any of you are interested in sharing your personal experiences or difficulties you are facing or want to know other's experiences, then surely join the group.
I am the Admin of that group with the name "Swayam Raigarh".
There is a name for the experience of the stage of being a point of light. In Yoga terminology is called the seed form stage. It can be a shamanistic experience. It is not unique to Yoga meditation or RJY. You should conduct a literature search on near-death experiences. There are similarities of the pin-point of light stage and near-death experiences. Psycho-physiologically, a hypometabolic state can be experienced.