DNA is the existential code instructing all life in its every aspect. The order of grace in human conduct is personal, the intentional interaction of person-to-person behavior. We are true to authentic living when love is the conscious energy driving us to understand who we are and how to relate to all other in the Order of Nature, what is First Sacrament.
Generational transformation is a compelling form of migration. Good lives on, generation after generation - our bodies return to the humus from which they derive, but our 'souls' continue in our offspring, and the good we do in the lives of others.
http://www.secondenlightenment.org/Photosynthesis.pdf