Nobody (on our side) ever said heaven (or hell) was a "state of mind".
Heaven really exists, and it really exists in some sense is physical, because there are real, physical, glorified, human bodies there right now.
(It doesn't follow that it physically exists in our universe, such that you could build a spaceship and fly there, however.)
(It doesn't follow that it physically exists in our universe, such that you could build a spaceship and fly there, however.)
Seems a number of your fellow compadres' don't actually agree with the even partial physical existance of heaven
I can't imagine why you would think heaven is not physical...The bible clearly says that our dead bodies will be physically resurrected (and changed)