When you try to astral project, can you get flashes from a past life, or maybe notice a nearby spirit? The reason I ask is I tried the rope technique last night, but I kept getting distracted by a colonial lopking woman in a bonnet. She was talking to someone (another woman, I think(I couldn't get a good look at her))about something, men, I think,,but I was trying to force them away, so I can't be sure.
I have heard of people encountering spirits on the astral, but I've only heard of people being able to remember past lives through trance-work and hypnosis.
However, I suppose it's possible to see visions of a past life while on or trying to reach the astral plane. It's also possible that you saw spirits from a certain time period as well.
I would try doing the same thing again and see if you have the same experience. If you do, ask yourself a few questions. Do these people seem familiar to me? Does the place they are at or in seem familiar to me? If so then perhaps you are seeing vision of a past life. If not then perhaps you are seeing spirits.
I'm no expert on past-lives, past life experiences, or astral projection, but your experience is intriguing and worth further exploration.