A certain amount of the energy that makes a human being function will certainly end up in other humans after he/she dies. A lot of it is recycled chemically in the soil that claims our bodies, for a start.
Does that count as reincarnation, though? Once that energy leaves your body, it has no memory of who or even what you were. It does not carry any part of what you would think of as your identity (you might suppose it does so invisibly, but then you're getting into the realms of fantasy).Those who come into contact with it will not be contacting "you".
It is a nice thought that our physical remains continue on as part of our larger legacy, and I've actually used that thought to comfort the bereaved. The energy we've used, while it is out there, will not produce any long-term echoes of us that anyone will ever identify. Our memories and identities are much better preserved in photo albums.
- SmartLX