For those who believe in reincarnation, PLR is said to be a way to experience past lives. Others believe that perhaps, rather than one's own past, PLR opens a channel for other spirits to speak through a person, or for a person to experience or to recall a collective memory. Or, of course, there is always the chance that it is completely hocus-pocus, and the "memories" are nothing more than our own memories from reading books or watching TV or movies, or even fabrications by an active imagination.
Nonetheless, the subject of Past Life Regression has always attracted me, and I would like to have it done to see what I can experience -- whether it is possible that I have had past lives or not.
I will have to research this subject more.