as mentioned above, it's a matter of belief. there are logical and divine answers to regression of course, the mind is a powerful tool after all. i personally feel we are reborn and in each life we must learn a new lesson. while it is neat that you were Cleopatra in a past life, it doesn't have any importance in this lifetime. in this lifetime you are John Doe and that's the life you must focus on. of course, sometimes warnings and/or advise can be received through past life regression, but i still feel it's this life that counts.
i'm pretty sure this was a past life for many different reasons, but as mentioned i don't put too much emphasis on it. i think in a past life i was a passenger on the Titanic. now, i've always been fascinated with the Titanic, i grew up by the sea, had fishermen in my family [my uncle, grandfather and father had all worked on ships for many years] and i learned from my own families genealogy my great grandparents were meant to be on the ships maiden voyage but my great grandmother got sick so they traded in their tickets. [just bringing up logical answers to my story.] anyway, on the 100 year anniversary of the sinking of the Titanic i had a very vivid dream where i was on the ship [while i didn't see my face, i could tell i was male] i shot awake after i hit the water in my dream. when i looked at my clock it was 2:20 am, which was the time the Titanic disappeared forever. this isn't the first time i've had dreams about being on a sinking ship, but i just assumed because i was aware of the anniversary it was my mind. later on i found out you can do past life regression through dreams. i like to believe it was my past life, but that's really the extent of it.