Planets in houses · Dusthana
Rahu in the 12th house
North node · Vyaya Bhava
Rahu is the karaka (significator) of ambition, foreign links, technology and desire. The 12th house, called Vyaya Bhava, shows expenses, foreign lands and moksha. When Rahu sits here, these matters take on its colour.
In the 12th house a malefic can raise expenses, losses or sleep trouble, but also helps detachment and work abroad.
The 12th house is a dusthana (house of difficulty), so results here come through challenges and need conscious handling.
Rahu is a shadow graha and gives the results of the sign lord and conjunct grahas; it is considered strong in Vrishabha.
Results are weaker if Rahu is debilitated in Vrishchika, combust, or afflicted by malefics.
In transit (gochar)
When Rahu transits the 12th 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.