the reason is that the #key to your physical incarnation sharing a soul connection with a "prior lifetime" is not a question of your soul / consciousness moving from one body to the next
but, rather, it's about you connecting to an always on, always there "radio signal" that IS your consciousness (OUTSIDE your physical body -- God is in "the cloud") . . . and just as you might share your Netflix password with your boyfriend, so (too) it is possible that more than one person shares the "same account" and are each tuned to a specific #vibration or #channel