I have this natally. Jupiter conj Sun. Currently it sextiles my natal Sun by transit and will square it in the coming year or so.Jupiter rules Sag/Pisces(esoteric ruler of Aqua and exalted in Cancer).ALL these energies don't like boundaries. Yes, even Cancer. Cancer reflects the changing phases of the Moon (like the cycles of life) in a continuous, never-ending ebb and flow.
Jupiter is about going beyond boundaries, beyond the mountain top, beyond the depths of the sea and beyond the altitude of the limits of the sky. Doing away/completely ignoring with figurative or literal boundaries- either consciously or unconsciously (limitation defying dreams).
Much like Mars, there could be risk involved in going beyond boundaries (Sat), but there is also HUGE potential for new discoveries and new benchmarks.
We have been taught to fear going beyond set limitations. The warning being very subliminal in many cases like the story of "the tower of babel" in the Bible.
Saturn sets limits and Jupiter is expansion beyond that. Many times the momentum everlasting. But the relationship between the two mirrors the nature of the paradoxical semi-sextile relationship of Sag and Cap I.e after Jup(Sag) has expanded boundaries (Sat/ Cap), the "new" boundaries (Sat/Cap) are then those originally reached by Sag (Jup)🤷🏿♂️
So any aspect of transit Jup to a natal planet is where you will expand FOREVER MORE. But consciousness (Sun) will have to keep up with that expanded version of you. And this can take a lifetime I.e "It takes many lifetimes to know who
u really are. It is never "done" and never "complete". And you can never get it "wrong"."
This is why natal jup-Sun people (natal or by progression)often feel like they are getting to know themselves "more and more" as they get older. As their consciousness(Sun) is always trying to catch up to the extended version of themselves.
So often to others they will appear "larger than life". And sometimes even physically so🤣🤣🤣🤣 I.e This can also translate to being progressively obese/fat or large in size or height as one ages.
Jup can make boundaries unclear in the area of life that planet is placed in.That is where we are risk-seeking (barring Sat also there), take more chances,can "wing it", have heaps of confidence, believe in our connection to God / the Universe or "isness" etc.
Transit of Jup to Sun by conj can help change your mind about what you "think" you can accomplish. What you can do and how much you can be,have,want and know etc. Confidence tends to increase and the whole philosophy of "you create your own reality" becomes a concept that the native starts to believe in because with Jupiter's "expansion effect", one is not satisfied to think in minimalistic( even "realistic") terms anymore. They want to go beyond them.
Look at the house where Sun is in,that is the area of life where you will take more chances. In my case,Jup sextile the Sun in the 9th house and so that is where I am "growing" in the form of "epiphanies" or "realizations"" about my belief systems(9th) and doing away with any further limitations or "small mindedness" in that area of life.🙏🏿
Sun rules my 5th house of romance. And I am dating someone whom is a "foreigner" (9th house). The meeting happened during this transit and so far I am finding our differences fascinating (sextile). With the coming square (if we are still at it), these same differences could be the source of arguments and frustration.🤷🏿♂️