Planets in houses · Dusthana
Budh in the 12th house
Mercury · Vyaya Bhava
Budh is the karaka (significator) of intellect, speech, business and learning. The 12th house, called Vyaya Bhava, shows expenses, foreign lands and moksha. When Budh sits here, these matters take on its colour.
In the 12th house a benefic turns spending toward good causes and supports sleep, spiritual life and foreign connections.
The 12th house is a dusthana (house of difficulty), so results here come through challenges and need conscious handling.
Budh gives its best results here when it is exalted in Kanya, in its own sign (Mithuna and Kanya) or in a friendly sign, and when it is not combust.
Results are weaker if Budh is debilitated in Meena, combust, or afflicted by malefics.
In transit (gochar)
When Budh 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.