Please comment if there are any misunderstandings or potential simplifications or other improvements.
[Ethereality.―I followed your link to that other website and posted a reply to you there. I now see my reply was deleted, so I’ll repost it here, together with the reason why they deleted it.]
This is really a very daunting task you have set yourself here. I have never seen this kind of thing attempted before, but it occurs to me that perhaps you might be able to find a ready-made document available somewhere, either online or in a book.
In the meantime, I would like to address the following comment to the (anonymous?) commenter who posted answer No. 1 on this thread…
While everything you say is (as far as I know) absolutely correct, I would suggest changing the balance. Your explanation is in two parts: (1) From “There is one being …” all the way down to “ … the evil we experience” is a statement of Christian belief about the nature of God and man, sin and redemption. (2) The final paragraph is a section-by-section outline of what your Japanese friend will be seeing and hearing when she or he is present among the congregation. I think the second part should be at least as long as the first part. Possibly explain a bit more about the readings – usually a first reading from the Old Testament (what is that?), then a psalm (sung in a very abbreviated form), then a second reading, usually from one of the Epistles (what’s that?), and finally from one of the Gospels (what’s that?) – followed by what you interestingly call the “lecture” (you might add that it is usually timed to last about 15 minutes, but can vary greatly in length). And then explain that everything that has happened so far is only a preparation for the
real Mass that is now going to begin with the recitation of the Creed (a short statement of Christian belief) followed by … And this is going to call for some historical background about the Last Supper.
The only thing I would leave out is that bit at the very end, that has the unfortunate effect of seeming to trivialize everything that has gone before:
and we praise God because singing is fun and praising God improves our mental health.
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