That seems to be the meaning of the quoted passages.
Divine Science is Christian Science; the book "Science and Health" is a "revelation" of the whole spirit of the Trinity, and is therefore "The Holy Ghost"; it conveys to men the "spiritual interpretation" of the Bible's teachings and therefore is "the Comforter." I do not find this analyzing work easy, I would rather saw wood; and a person can never tell whether he has added up a Science and Health sum right or not, anyway, after all his trouble.

Neither can he easily find out whether the texts are still on the market or have been discarded from the Book; for two hundred and fifty-eight editions of it have been issued, and no two editions seem to be alike.

The annual changes--in technical terminology; in matter and wording; in transpositions of chapters and verses; in leaving out old chapters and verses and putting in new ones--seem to be next to innumerable, and as there is no index, there is no way to find a thing one wants without reading the book through.

If ever I inspire a Bible-Annex I will not rush at it in a half-digested, helter-skelter way and have to put in thirty-eight years trying to get some of it the way I want it, I will sit down and think it out and know what it is I want to say before I begin.

An inspirer cannot inspire for Mrs.Eddy and keep his reputation.