Discovering that your focus on others is really a form of self-focus, you begin to look for the reality of others, behind the mirrored reflection of your own ego. What you eventually have discovered is that, in this play of self and other, both are illusions.
We need to understand the nature of the Twelfth house as one of the most spiritual houses in our astrological chart. It represents issues related to spirituality, secrets, karma, charity, confinement, institutions, suffering, cosmic consciousness, meditation, escapism and service to humanity.
This article says sun in 12th there are lots of father-figure alienation issues, because you have to get with Da Spiritual Father first.