Do you think it is possible someone has lived past lives?
I'd like to hear people's responses.

I think more along the lines that your soul energy (not life) is used in another life form after you die.

Note that I do not believe that your soul and your soul energy are the same.

I don't know, I mean it's plausible.

I plan to use "past-life regression" on myself during AP when I think I am good enough. I'm extremely interested to see what results I might get when I do this.

You can do it in a trance. I know people do that..
I think it exists,
my definition is the same soul is being used with different people.

I agree with Stolide. Though I don't believe the reincarnation necessarily has to be at all the same person as the previous life it was used for. I think its really the soul energy's past life rather than the persons.