A thing to remember here is that these posts are strictly meant for the particular planet position. Like, today we are looking at Jupiter in Scorpio, so the description given here may change for you if your Jupiter is although in the sign of Scorpio but with conjunction with or aspected by other planets.

So, lets see what Jupiter can do in Scorpio without any conjunction or aspect from any other planet. 1st lets see what these 2 things represent --

Jupiter is the most benefic planet and it represents all the auspicious things like Knowledge, Wisdom, Law, Guru, Spirituality, Religion, Philosophy, Literature, Elderly People. For a girl, Jupiter also represents Husband.

Scorpio is the 8th sign of zodiac belt, hence it represents the things and energy related with 8th house of horoscope like Sudden Events, Secrecy, Dark World, Occult Science, Research, Inheritance, Serving Others, Taxes etc. Besides these things sign of Scorpio also represent transformation, means changing the whole nature upside down. Now with Scorpio, scary things start in Astrology. This is one sign which is favorite of every Astrologer, because it has maximum secrets, so every astrologer gets maximum scope of researching. This is sign about which no one can tell with precision that what will happen to the planets in it, as it is sign of secrecy itself. Scorpio is one sign where no planet is happy. Scorpio is also one of those unique signs which has 2 rulers, i.e. Mars and Ketu. Scorpio is the sign which shows our Karmic Debt in this world. Scorpio consists of next set of 2 and half nakshatras, i.e. Vishakha, Anuradha and Jyeshtha.

Whenever a knowledge oriented planet like Jupiter/Mercury comes into Scorpio, the biggest possibility is that person will become an Occultist and this position is no exception. Jupiter is all about knowledge and wisdom and Scorpio is sign of occult and secrecy. So, no surprises that this person is highly involved in gaining knowledge about occult and secret matters. Not only Occultist but they can be in any research oriented activity. Basically, this person is all about having knowledge of Occult. One of the best positions to become an occultist or mystic. The more they guide people, better they will be in life. 

Again, impact of Jupiter effect in Scorpio will be controlled by the various nakshatra Jupiter might be in. Like, if Jupiter is in Vishakha nakshatra, then it is in its own nashatra. If Jupiter is in Anuradha nakshatra, then Saturn will impact Jupiter's role in Scorpio. If Jupiter is in Jyeshtha nakshatra, then it is impacted by Jyeshtha's lord Mercury.

Last but not the least, we have to look at position and conditions both lords of Scorpio, i.e. Mars and Ketu, to finally come to know what is going on with this Jupiter here. So, overall reading is much more necessary than a particular planet in sign position.