WARNING: The following article contains spoilers for The Swamp Thing #4 by Ram V, Mike Perkins, Mike Spicer, Aditya Bidikar, on sale now.
The new Swamp Thing has finally learned what the Green truly is, thanks to a history lesson with his predecessor, Alec Holland, who revealed that – in part – the Green is a collection of the memories of all those who have ever been connected to the Green.
https://www.cbr.com/swamp-thing-alec-holland-green-infinite-frontier/