Reincarnation is an interesting subject. This may come as a surprise, but I have no direct pipeline into how the universe is run. However, all matter is recycled…so, maybe if the material that holds consciousness is recycled, consciousness itself is recycled as well.
The concept of living more than one life has been around for a long time. It’s found in Hinduism, Buddhism, and mystical Judaism, among other religions. The idea that your actions and thoughts affect your next life is a common thread between those three religions, but my favorite concept comes from the Kabbalah. All consciousness are small sparks of God, and all our interactions are God’s attempt to understand itself.
To say that in another way: We all come from the same source, and are like drops of water in a river – we are all equal parts of a whole.