Planets in houses · Dusthana
Ketu in the 8th house
South node · Ayu Bhava
Ketu is the karaka (significator) of detachment, intuition, spirituality and past karma. The 8th house, called Ayu Bhava, shows longevity, secrets and sudden events. When Ketu sits here, these matters take on its colour.
In the 8th house a malefic can bring sudden events and hidden worries, yet also resilience and depth.
The 8th house is a dusthana (house of difficulty), so results here come through challenges and need conscious handling.
Ketu is a shadow graha and gives the results of the sign lord and conjunct grahas; it is considered strong in Vrishchika.
Results are weaker if Ketu is debilitated in Vrishabha, combust, or afflicted by malefics.
In transit (gochar)
When Ketu transits the 8th house counted from your Moon sign, the period traditionally needs more care.
A single placement is never read alone: sign, aspects, conjunctions, dasha and the whole chart change the outcome.