Planets in houses · Dusthana
Guru in the 12th house
Jupiter · Vyaya Bhava
Guru is the karaka (significator) of wisdom, children, wealth and good fortune. The 12th house, called Vyaya Bhava, shows expenses, foreign lands and moksha. When Guru 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.
Guru gives its best results here when it is exalted in Karka, in its own sign (Dhanu and Meena) or in a friendly sign, and when it is not combust.
Results are weaker if Guru is debilitated in Makara, combust, or afflicted by malefics.
In transit (gochar)
When Guru 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.