The Immortalis Series: "Memorial"

Just a complicated idea I've recently had while working at my job. I suddenly realized that - out of all the lives I've crossed - there is only one life I'll truly know better than any; my own. However, what if there were a way to live other lives? What if I could tell you what others have or had done before passing on? Plus, wouldn't that be something like immortality? To tell of, experience, hundreds of other lifetimes... is that not endless life perhaps? Whatevs, this just an idea.