As magnet attracts iron, physical bodies attract souls. Souls in physical bodies perform karmas (deeds) and these karmas (deeds) get impressed on the sub-conscious mind. After the death, Soul leaves the physical body with these impressions within it. The impressions which the soul carries could be of the nature of violence, revenge, jealous, fear, love, laziness, greed, sensuous pleasures, possessiveness etc. All those physical bodies which can satisfy these impressions would attract that soul to them. For example impressions of violence could attract to the physical body of a lion or tiger, sensuous pleasure to a dog, fear would attract the soul to an animal/bird having such nature; greed or revenge to such a physical body (human being or animal) where they would get satisfied. Karmas are performed by souls and physical bodies act as vehicles to facilitate these karmas and their results.

If you wish to take rebirth in a pious human being body then perform deeds accordingly i.e. of love, compassion, tolerance, help, non-violence etc.

- Ramesh Jain

Q: Mind has a natural tendency to be negative. How can we develop positive attitude? It does not seem to be easy?
A: Negativity acts as a gravitational force for the mind. Effortlessly it gets attracted towards negativity and develops negative attitude for everything without realizing the repercussions.

You have to consciously put intense efforts to fight the pulls from negative forces. You have to start becoming extra positive to counter the long lasting negative impressions on the mind, even if that is painful in the short term.