So I had two spreads on the same but different areas topic around self improvement - basically what can I do.
Imagery in leno is important in my view. In my leno deck the letter card shows a paragraph in French. I've not learnt any French since my school days(which was a little while ago!) so google translate helped me a bit(sorry if its wrong!).
In French: "le teinturier que je mets, ou le genie familier qui me dirige la main en ecrivant, aurait donc au moins la vertu d'etre invisible. Ou, avoir un genie a sa disposition, c'est bien quelque chose, je pense, en meine tout ce qu'il faut pour attester le caracere et le pouvoir d'une sibylle."
In English(according to Google):
"the dyer that I put on, or the familiar genius who directs my hand while writing, would therefore at least have the virtue of being invisible. Or, to have a genius at his disposal is something, I think, in me, all it takes to attest to the character and the power of a sibyl."
A sibyl = a woman in ancient times who was thought to utter the prophecies of a god. A woman who is able to foretell the future.
Basically i think it is saying I know what i need to do, I just need to make the commitment and dont break the contract with myself.
I like your interpretation, sort of making a contract (letter) of commitment (Ring) to yourself.
On the other hand I could also see how that could represent a marriage proposal.
Or alternatively a chainmail? lol No seriously, but sometimes Ring to me represents things that are being repeated, or coming back, so some sort of news or mail or letter that you have encountered before, or since it is Mercury rx maybe coming back to you or taking a certain detour (going in circles) until reaching you.
Well of course the last paragraph does not fit your question at all, so relating it to the specific question at hand, I think I would opt for your own interpretation.