There are few questions which we can ask ourselves in order to understand re-incarnation.
- Why every born child has certain distinctive character traits? From where our basic character comes from?
- Why there are some people with born disabilities?
- Why there are some infants who are dead within few hours of their birth?
- Why some good people do all things right, but still a lot of bad things happens to them and vice-versa?
There are 3 possible answers to the above questions:
- A first possibility is Materialists would say that our basic character is determined by the genes we inherit from our parents, and by which of these genes are activated in our bodies. If asked why we have the parents we do have, and what determines which genes are active and which are recessive, they would answer in a single word: chance. But invoking chance explains nothing; it implies in fact that there is no explanation: things just happen to be the way they are. Materialists would also say that the person with born disabilities have certain wrong genes or had abnormal growth; But why that particular gene went wrong? Efforts to reduce the wonders of life and mind to random physico-chemical interactions are grossly inadequate and unsatisfactory.
- A second possibility is that there is a God, a divine being, who creates a new human soul for each newborn child. If God gives us our character and decides the circumstances of our birth, HE would also bear a major responsibility for all the subsequent events of our lives. It would mean that people suffer because it's God's will that they should suffer. A being capable of such cruelty and injustice would surely be a senseless being rather than a "God."
- A third possibility, and the most reasonable, is reincarnation due to our own Karma. According to this view, our souls are reborn again and again until it merges with GOD after nullifying all its karmas. We sow seeds that we shall harvest in future lives. There is no such thing as chance, but rather a network of karma, whereby the consequences of all our thoughts and deeds ultimately rebound upon us, either in this life or in a future life. When a soul returns to incarnation, it is drawn by affinity to the parents who can provide it with the body and environment best fitted to the tendencies it already possesses. So rather than inheriting our characteristics from our parents, we actually inherit them through our parents from ourselves -- from our own past.
Some people say that "How a man could become an animal"? The answer is why it is not possible? e.g a driver driving a car can also drive a cycle/truck/airplane etc.. We are NOT our body. We are the Soul and NOT the body; the soul is the driver of our physical body. Soul can be placed in any of the 8.4 million species to reap the fruits of our karmas that we sow while in the human body.