Certain factors and stories (themes/archetypes) emerge as events -or in our consciousness- at specific times in our lives. In any given moment there are several themes and processes unfolding simultaneously. Sometimes themes overlap and combine to create a wildly potent (sometimes recurring) motif. At other times a moment acts as a trigger for the literal or symbolic (exterior or interior) manifestation of an important issue, event, feeling, transition, or just time in your life. Through examining midpoints, planetary pictures, antiscia, reflex houses, and a myriad of timing techniques which accompany these methods, we can get a good idea of what is up for you—and how to work with it.
Midpoints conduct energy. They are focal (or funnel) points for planetary significations. There are direct and indirect midpoints, the latter slightly less intense. Antiscia falls under this designation as antiscions are simply midpoints around the four cardinal points (Equinoxes and Solstices). The cardinal points are sometimes simply called the Aries Point (and they are literally the sun's nodes). Actually, to be more precise, zero Aries is the ascending node of the sun while zero Libra marks the descending node, which puts the Solstice points at 'the bendings' (or square to) the sun's nodes. [This is something that deserves deeper examination later.]
Planetary pictures vary. Completed planetary pictures are like closed circuits; they convey major themes in a person's life which are periodically triggered, usually in significant and highly dramatic ways. There are also incomplete pictures (a.k.a. Lots) which seek a transit or other direction (or another person's planetary energy) to set off their significations. When this happens (and we can time these things) we have a say in how we respond, i.e., how we channel the energy. While transits and directions are fated (timing is predetermined), how and with whom we relate —and how we react— can be altered through intention, practice, mindfulness, distance and space, and other forms of remediation.
Reflex houses are a unique way of looking at the Personal Points (Sun, Moon, Midheaven, Lunar Nodes, Ascendant, and Aries Point). This method is specific to the Uranian/Hamburg School of astrology.
This system also utilizes TNPs (transNeptunian planets) for nuanced delineation.
See how Alfred Witte, the creator of the system, discovered them in this article.