Planets in houses · Kendra
Rahu in the 4th house
North node · Sukha Bhava
Rahu is the karaka (significator) of ambition, foreign links, technology and desire. The 4th house, called Sukha Bhava, shows home, mother and happiness. When Rahu sits here, these matters take on its colour.
In the 4th house a malefic can disturb peace at home or with property, and asks one to build inner calm.
The 4th house is a kendra (angular house), a pillar of the chart, so a graha here shows its results openly and strongly.
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 4th 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.