I've been trying to interpret my own progressed synastry with this guy lately. I'm learning a lot of things about my current chemistry with him through the chart. I just also recently found that we have a grand earth trine in our progressed synastry chart. His Neptune in Capricorn overlaying my 7th house and his Mercury in Taurus overlaying my 11th house is forming a grand trine with my Venus in Virgo overlaying his 9th house. I'm not sure what it means, but I'm pretty sure it has to do something with being idealistic in terms of thinking. What do you think?