I believe in Reincarnation, however, I also believe that many have lived before in human forms, and some have lived in spirit forms. The spirit form does not have a body until they are born. Some people dream about living before. My own dreams about this haunt me, to this day. They are so vivid and real. And maybe you have dreamed, too. I have found in this world to keep an open mind, and heart, so knowledge will have an easier avenue to travel, so we may become wiser.
And you are wondering also, why are we living now and for what purpose have we been put on this earth? Each one has been put here for a certain reason, and it could be as simple as to make your mother or father happy, and to award him or her for a previous life experience.
Over 80% of Americans believe in the Afterlife. I believe the essence of a person survives when one dies. It is a spiritual form of your body. I believe if one could see a spirit, it would be a grayish color.
I hope this helps.
Have a Great Week,