Jaya (“victory”) Yoga: The 6th lord debilitated and the 10th lord deeply exalted.
“Happiness and conquest is bestowed upon the native, as well as success in ventures and a long life.”
Logic -
The 6th house stands for, Service, debts, accidents, anxieties, diseases, enemies, law suits, theft, blame, combat, imprisonment, cruel deeds, dejection, dishonor, misunderstandings, pain, outcasts, grief, severe reproach, trouble through servants, sub ordinates, and employees, vices, vicious habits, wounds, untimely death, severe reproach and worries.
The 10th house stands for Authority, business, commerce, fame, profession, command, honors, and prestige, high positions with the government, and companies, and rank.
The 6th house while being a dusthana is also an Upachaya house. The 6th house is the 1st segment of the neither world of the sky. This is where the planets come to set and then go down after setting. It is the land of darkness and thus another place of loss. However the planet which has made its transition from visible (5th house) to the invisible (6th) continues to move towards an angular house (7th). Thus the 6th becomes an Upachaya house because things start improving after an initial setback.
The 10th house is the house where the Sun is at its peak in the sky which by extension suggests that human activity (specifically career). 10th house activities are activities which are conducted in broad day light. All planets do well in the 10th house as opposed to the 6th house where the planets move in fear of setting, but with some hope that there will be a better day if they move to the 7th.
Thus, the 10th lord significantly stronger than the 6th lord allows one to complete their actions without struggles or opposition, or in the event that there is opposition, they are able to overcome that opposition with ease. The 10th lord gives command while the 6th lord gives service; therefore the 10th lord being stronger than the 6th lord makes the native a commander rather than a servant.