I call the 12th House (the one right before the Ascendent) the Soul Sector but it has many names. Fatalistic old style astrologers called it the House of Self-Undoing. The sign on the Cusp of the 12th is often one that you are not comfortable with although it would actually be brill for you to incorporate the higher aspects of that sign. Sometimes the 12th House operates almost like a relative you are embarassed about. Something fun to think about…yes?
The Sun, Moon and planets there can be like hidden talents, people whose Sun-Moon etc fall into your 12th House stir your Soul as do planets gliding through there. It’s potent for dreams, divination and secrets. There can be a withdrawal from the world – or what you think of as your world – when the 12th house is being activated…a fab time to do therapy, a personal pilgramage etc.
Soul Sector doings are deeply subliminal and as for the Self-Undoing theme, i don’t really go along with that. But i expect it has to do with how 12th house themes – secrets – can manifest as addictions and all that end of life. I know when i had Uranus in my 12th house, i operated way more subversively & led a v.insular life & then -wham – Uranus got to my Ascendent – everything changed.
So, something to think about: How do you work/use the sign/Sun/Moon or planets in your 12th house?? Do you repress them? Is there any link to secrets there? The 12th House is spooky and multi-layered as will be your answers to this question, if you muse upon it enough.
Quick examples as i am dashing: i HAVE noticed that peeps with Mars in the 12th are WAY more angry than they seem. Sublimated Mars. Also you often meet super-Low versions of the sign in your 12th House in early life, Jupiter there is secret blessings…