Question: What is the difference between giving a new soul and changing the soul?
Sri Chinmoy: When you get a new soul, it is like having another friend stay at your house. But instead of inviting in a new soul, it is also possible to bring down the quality of another person into someone. If one person is lacking in a quality, you can borrow this quality from someone else.
Sri Chinmoy, The soul and the process of reincarnation, Agni Press, 1977