Sun in the eighth house can put authority and personal direction through demanding changes, shared obligations or matters outside the native’s immediate control. With a capable eighth lord and supported Sun, the native can take responsibility for complicated affairs. Repeated affliction can make authority fragile or contested when those affairs become difficult.
Longevity and shared resources are separate judgments
Brihat Parashara Hora Shastra includes longevity among eighth-house subjects. In that traditional assessment, examine Lagna, Lagna lord, the eighth and its lord, relevant karakas and timing. Weakness repeated across them strengthens concern about longevity; substantial protection changes the reading. The Sun’s occupancy is one contribution to this assessment, not a sufficient basis for a death date.
For shared money, the Sun can emphasize who controls decisions. Strong second and eighth lords help resources remain usable; afflicted lords can bring difficulty over access or obligations. Moon and Jupiter in the eighth approach the same house through receptivity and guidance.
Follow the Sun’s actual responsibilities
The Sun’s seventh aspect reaches the second, linking shared matters with family resources and speech. Examine which house Leo rules: its concerns are carried into the eighth. A strong dispositor can help the Sun manage change even in a demanding house.
Sun in Libra adds debilitation; nearby planets introduce their own combustion conditions. For a disruptive period, require relevant dasha connections and repeated affliction. A supported eighth lord can instead make the period one of settling difficult obligations or managing a transition.