Check for somatic reactions, physical sensations, pain, clumsiness, some part of your body prone to injuries, any kinds of things that may have flown under the radar before, because sometimes encoding things into the flesh carries forwards into a new astral body, like people who have pain in their current life where past life wounds struck them down.
I have nothing more ot add on this at present except I am also working with a past life selfhood whose spirituality has relevance to my own life experiences. I may or may not post about that in future.