OK so we are talking about T Saturn to natal Jupiter. I have just had this in my 8th house --- very little happended or was noticeable. It ALL depends on how the natal jupiter is 'aspected' natallly as to whether it will trigger anything. In particular if Jupiter is badly challenged or involved in T Square for example.
Saturn is the Lord of Karma and master teacher, but really he's trying to teach us about ourselves. It wants us to be responsible, hard working, dutiful and learn our Lessons properly, so they won't have to keep being repeated. Therefore, is usually suggests things slowing down, delays, limitations and restrictions so we can learn these Lessons.
What Saturn does is 'test' what is of value to you and what is working in your life. It wants structure and hard work. If something isn't working--- it may well end--- so something better can be put in it's place.
Jolly jupiter is the planet of expansion, by sign, house position and aspect are the how, where and when things. These two planets really don't get along -- Jupiter can run off faith, beliefs and wants to expands -- saturn wants the opposite. It wants hard work, duty, responsibility, it delays, restricts and confines. This can therefore create a 'see-saw' personality where sometimes the expand, sometimes they are conservative and and don't
*Your aspirations and dreams are always tempered by realism and practical considerations. You pursue your aims in a systematic, disciplined, and thorough manner, and you are willing to take your time, advancing slowly and steadily on your way to your goal.
Sometimes you underestimate what is possible, and hold yourself back unnecessarily due to a lack of faith or an overly cautious attitude.
http://www.cafeastrology.com/natal/jupitersaturnaspects.html