Jupiter (Guru) and Saturn (Sani) are the key planets in our zodiac system. Jupiter is known as Dharma karaka (for Righteous living) and Saturn is known as Karma karaka (Karma is our deeds / actions or service to earn livelihood).
In short, “earning livelihood (money) through service to lead a righteous living”
Jupiter (Guru) and Saturn (Sani) conjunction in one house or aspecting each other (opposite) forms Dharmakarmadhipati yoga. The persons with this yoga are more inclined to religious activities, spiritualism and temple activities.
Dharmakarmadhipati yoga is also formed when the 9th house lord and 10th house lord are in conjunction or in mutual exchange. Since, 9th house stands for Dharma and 10th house stands for Karma, this yoga is formed.
Now, let me come to the very important subject on Jupiter Saturn aspect.
Jupiter and Saturn having trine aspect i.e. 1, 5, 9 in a chart is a blessing indeed. The person who is having this aspect in his birth chart can fulfill his desires easily (Dreams come true). In short, person gets what he wills. I would like to quote few verses from Rig Veda in this regard.
Rig Veda: "The person, who takes a resolution and works towards his goal with firm conviction, always gets it fulfilled”
“Even if a person has few means he can perform great actions and can fulfill all his desires through hard work and diligence”
Trine Aspect - I am giving examples of Trine aspect between Jupiter and Saturn for easy understanding.