Hi tingskris,
Like you I have intercepted signs across the 3rd-9th house axis, with the Sun in 9th. Mine is in Taurus with, but not joined to close conjunction Mercury and Venus. 3rd house is empty.
What I found to be relevant with interception was the necessity of the qualities inherent in the preceding signs and the position of their rulers because, otherwise, the qualities of the intercepted sign literally 'get in the way' of house expression.
As a very simple example (part of a more complex pattern), which I hope you can follow:
My 9th house Taurus side has always loved everything to do with 'Mother Earth'. When younger I had penfriends all over the globe but never met them because Taurus itself is not a get-up-and-go sign. It needs the push from Aries, through Mars, to present the impulse 'to do it'.
By co-incidence(?), my Sun sextiles my 11th house (friends) Mars. I met 'a foreigner'. It took so much courage of will to leave the physical security I had and knew and settle abroad, where I have since lived for the majority of my life. Without Aries on the cusp of my 9th house I may never have done it because Taurus would not have changed and moved so quickly....metaphorically as well as literally speaking. Had I never been influenced to move abroad, I may never have got into astrology to learn what makes people tick that can subsequently influence their 9th house health and well-being.
Similarly, had I not had Libra on the 3rd house cusp to help me 'weigh the pros and cons in thought processes', deep-thinking Scorpio might have gone deeper down a destructive one-way street instead of seeing alternatives that can fit just as well. I have a very loving relationship with my siblings. I dread to think what Scorpio might have brought
When judging your own chart (and remembering how young you still are),
look at the significance of a 9th house Pisces (growth and development (through) cultural belief patterns) and Neptune in Capricorn (dissolution of physical boundaries, yet sensitivity given form by Saturn) and how this will effect the power of Spiritual energy of/in Sun in Aries.
Similarly, how does the reality of Virgo through Mercury in Pisces effect a Moon-Black Moon Lilith (instinctive behaviour patterns) in Libra (over others)? How does this tie in with a grand cross in cardinal signs and mutable houses that includes Chiron and a nodal axis across Virgo-Pisces and 2nd-8th houses?
My mind is reeling with the qualities you possess and the possibilities open to you when used in a positive way.