we should not overlook the significance of so-called empty houses. Should the planet ruling the sign on the cusp of an empty house be the focal point for a particular chart shaping
Sasportas argues that an untenanted house — governed by an empty sign — may nonetheless be psychologically central when its ruling planet occupies a structurally dominant position in the chart.
, The Twelve Houses: An Introduction to the Houses in Astrological Interpretation, 1985thesis