Reincarnation caused by energy leak from your body
Your soul is energy. It needs to circulate around your body like your blood being pumped thru the body. As your body ages, your soul (energy) starts to have friction with your worn body. Therefore your soul needs to bypass someone else's body in order to circulate just like before. Therefore it feels good to have kids so that your soul can shoot out onto your kids body and circulates among them. I mean its like magnetic flux. Magnets attracts metal because its flux circulates onto metal. Your soul cannot simply circulate onto your friend's body nor your neighbor's body because the DNA don't match. A person that wears the rings do not have aging body. Therefore, he is less likely to want kids because there is no need to circulate his own soul onto another person's body. If you die, your soul will completely circulate onto your offsprings' body. Maybe one of them will born to have your very own concience. Just a theory. But it makes sense. Could be a model for the soul cycle.

Every soul is incarnated in a body. The soul is not energy in the term you depict, soul is formed by elements on a different density level. The Soul is attacched to the body trhough chackras, energy travels from one charcka to antoher when there are the conditions to do so. Normally people has many chakcras blocked. The main contact point is in the 4th charcka , the heart charckra, this was decided for 2 reasons. the first is that the earth is in the central part of the body the second is that if heart fails, the death is immediate. The sould doesn't spread the sould doesn't part itself to go into son's body Every body has a soul. People make differences beetween mind and soul. The soul is your mind, the brain acts as a receiver and a data storage. the position of each cell of the body is stored into what new agers call aura. its the body's hard drive. The reason why a soul reincarnates is just one, desire , every desire need to be satisfied. If you desire to fuck a stripper you will reincarnate until you will , no matter the time or how many lifes it will take, you have to satisfy you needs. 'They' advice to stop desire everything and your soul will be free to evolve on higher planes. Your theory on soul is wrong, study Pantyajali yogasutras, you can find everything there.

Well, everyone got theories. You got my point though.