Well I use the word eternal, but in the context of within our universe or metaphorically. Do I actually believe there is something more than our universe (it's hard to use our language here, lol) I don't know, I think it's very possible, just as there are millions of atoms in a molecule, millions of molecules in a cell, millions of cells in the body, and so on and so on, I think most likely our universe is but a fraction of more, but that is just pure guess and I wouldn't bet a nickle on it. There is no way to probe beyond the universe, hopefully some day, but doubtful.