My personal belief is that there is only one true consciousness (God), and that this being is self aware, and also is all matter and energy. Not part of the universe, but its entirety.
I believe we are all parts of this one consciousness, split off temporarily and unaware, so we can experience this universe (really ourself) and bring our experiences back. I believe when you die you rejoin the whole, and you also will experience the lifetime of every other person who ever lived.
And that's why I feel it's really in everyone's self interest to treat each other with as much love as possible.