But how far is it safe to trust to this kind of argument?

There is a pretty argument in the fact that just such sunrises, such opening of buds, such fragrant dropping of fruit, such bells in the brooks, such dreams at twilight, and such hush of stars, were fit for Adam and Eve, made holy man and woman. How do we know that the abstract idea of a heaven needs imply anything very much unlike Eden? There is some reason as well as poetry in the conception of a Paradise Regained. A new earth wherein dwelleth righteousness.