A scientific term for "born Again" is metamorphosis. What it tells us is man are, shall we say, tadpoles swimming in a pond of materialism controlled by money and just following the traditions associated with money and materialism. When the tadpole fulfill its time it began changing into a frog and once it has changed it can not live in the pond but is required to live on land. However, it can survive short periods in materialism but can not breathe water -- be attached to money, family nor goods (Matthew 19:29 & John 3:8) -- as a tadpole. The frog must return to a pond to lay its eggs, sow spiritual seeds, in the water.
Another way of saying it is material man are seasonal trees that incarnate a body [of leaves] over its life-force [wood] and produces their fruit before discarnating that body of leaves in the fall. Once a man fulfilled its time as a reincarnating being it goes through a metamorphosis where it is transformed into an evergreen tree [everlasting life] in preparation to go to another plane of existence where dis and incarnating is no longer.
In the metamorphosed state we have little to no interest in the material THINGS OF THE WORLD but our focuses is on understanding the purpose for everything. We will use some few material things as needed for sowing our seeds but are willing to let them go at a moment's notice. Thus, born again man are man becoming wise (Daniel 12:10).