Secondary Progressions in Synastry

Secondary Progressions reveal a look at how a natal chart progresses through time, how the development of an individual personality (as in an internal physiological change) is expressed through the various phases one goes through. In synastry, progressed charts are used to yield insights into matters of subjective timing, to understand why, for example, two people were open to falling in love with each other when and under what conditions they did.