The Buddha never expounded upon reicarnation. Just that any thing made of aggregates will fall apart in time to their basic components. Meaning is a person’s personality is not real and will cease to exist when the body ceases to live. The essence of a person is much like when a child creates a splash of ocean water. Each drop flies in its own trajectory. Some live longer than others. Some join other drops and some pass thru. Eventually, all return to the ocean. Another splash, another lifetime. However love appears, to me, to be a real force with its own set of rules. Creating turbulance and keeping a galaxy of its own. So, what is the goal of these experiences?  For the person to have these experiences, to find the truth about themselves. Not so much as what past lives were about. More about your present situation, you life now. If Buddha points to the moon with his finger then do you look at the finger? Or do you look at the moon?