When looking at secondary progressions, it is common practice to look at the progressed Ascendant and Midheaven. However, I find it very helpful in predictive work to examine all of the progressed house cusps.
In a natal chart, each cusp serves as the gateway into a house that rules certain life areas and activities. Houses operate in pairs, and the degrees on a house cusp will always mirror the degree on its opposite cusp. Therefore, if the second house is 18 degrees of Taurus, the eighth house will be 18 degrees of Scorpio. The sign on each cusp describes the individual’s attitude and approach towards the areas ruled by that particular house.
Since house cusps are connected to the life areas and activities ruled by the house, it is important to note when they change signs by progression, because it heralds the beginning of a major cycle in a person’s life and describes the type of events that are going to unfold.
Whenever I see that a house cusp has reached 29 degrees by progression, a “red alert” sounds in my head because I know the client is on the verge of a new cycle. Oftentimes, the person is starting to feel that “something’s coming, something big” but they lack any sense of definition or clarity.
When the house cusps move from 29 degrees of one sign to 0 degrees of the new sign, the transition connected to the affairs of the affected houses actually begins.
For example, if the tenth (career) house changes signs, there is likely to be a career change, and since the houses operate in pairs, the fourth house (home) has also changed signs, so one’s home may be affected as well. For example, the person may be relocating for a new job or perhaps their commute from home is affected. Depending upon the person’s circumstances, it could signal they are going to retire.
Similarly, when the first (self) and seventh (marriage) houses change signs, the person may begin or end a significant relationship. It is very common for these house cusps to be active when people get married or divorced.
In terms of timing, my experience is that by the time a house cusp reaches two degrees, significant changes have occurred in the person’s life, and by the time it reaches three degrees, the changes are well established.
I have also found that progressed house cusps frequently indicate major events when they aspect natal planets by conjunction.
Finally, although progressions are an important part of predictive work, one must always consider the transits, as well as the natal promise contained within the chart, in order to render an accurate forecast.