In another thread, Jim shared his findings about usefulness of applying Sec.Progressions and their Converse in synastry analysis.
Since it's an interesting approach, probably new to most of astrology students, I'm opening this separate thread about it.
Jim Eshelman wrote:I should add, there is one place I have reliably used converse methods more often than any other. It's a particular use of direct and converse secondary progressions (full quotidian treatment) in synastry. (I think Bradley turned me onto this, but I might be remembering wrong.)
It is this: You progress each person's chart to the moment and place the other was born, as if seeing what kind of life-event the other's birth was for you; and also relocate that progressed chart to the location where you have the relationship, if that differs.
Since one person is older and the other is younger, one if these secondary progressed charts is a direct progression and the other is a converse. It just happens to turn out that way
For example, progressing my chart to the moment and place of my first wife's birth has progressed Moon partile square my Mars. In the best and worst senses, we had an utterly Moon-Mars relationship (to the point where I really felt I had to count the two 8° Moon-Mars interchanges we had).
Progress my chart to Anna-Kria's birth and Moon is 21°23' Pisces, 65' from exact opposition to my Sun - and it was certainly one of those Sun-Moon themed partnerships. Uranus and Jupiter straddle the quotidian MC. There was also a partile progressed Venus-Saturn conjunction that (in good and bad ways, and large and small ways) ran through the relationship most of its course. Her SNQ to my moment and place of birth put my Sun square Ascendant (and something distinctive to our long-term interlocking: our progressed Suns always ran in exact square: even progressing her chart to my birth shows her progressed Sun 04' from exact square to my Sun). She also had a 20' progressed Moon-Neptune square just outside the orb of progressed Venus also. (Also a 35' Mars-Saturn square, but she's had that most of her life, due to the particular speed of Mars when he was born.) And more...
For my present-and-future mate, Marion, there is Uranus abundant. We already have that in the natal comparison, because her Uranus is partile semisquare my Sun. Among all the details of the relationship, I've never had another where there was more of a continuing sense that things were always new, always something else opening, always an exploration of ourselves and our interests. Specifically, my progressed Moon at her birth was 3°34' Cancer, right in the middle of my partile Jupiter-Uranus conjunction, and transiting Uranus (her Uranus) on the SNQ IC. I have a partile progressed Venus-Jupiter trine. Sun is partile conjunct Neptune (39') which I have to admit I'm confused about (LOL) - it probably shows the depth of attachment, as Neptune does (and our shared exploration and career in wine). Oh, yeah, progressed Mars partile opposes that Moon-Jupiter-Uranus cluster, which applies in numerous ways.
What stands out most in this, though, is the precision of these contacts, the sense that if I'd been scanning a decade of progressed aspects, I'd have single this month out as "wow, something really big is happening right here, and it will be good" - and then other factors narrowed it to the day.
Flip it to her chart progressed to my birth - which is technically a converse progression, since I'm older - and we get a repeat of Uranus (this time, square MC 16') and a number of things that bring her to the fore, that draw her out, not the least of which is her progressed Sun on SNQ MC and conjunct her natal Ascendant.