I fear I may be leaving you confused by saying "if this is indeed union with God" and suggesting that there are other kinds of union. But of course there are! If we are really very fond of vanities the devil will send us into transports over them; but these are not like the transports of God, nor is there the same delight and satisfaction for the soul or the same peace and joy. That joy is greater than all the joys of earth, and greater than all its delights, and all its satisfactions, so that there is no evidence that these satisfactions and those of the earth have a common origin; and they are apprehended, too, very differently, as you will have learned by experience. I said once117 that it is as if the one kind had to do with the grosser part of the body, and the other kind penetrated to the very marrow of the bones; that puts it well, and I know no better way of expressing it.
117 [P. Silverio refers here to Way of perfection, Chap. XXXI, but I hardly think this can be meant. Perhaps the author's allusion is to the first chapter of the Fourth Mansions or possibly to something she once said viva voce.]