The munthā's house — The fourth bhāva — Bandhu
Traditional interpretation — Parāśara transmission · BPHS, bhāva significations; Phaladīpikā II
The fourth is the floor of the chart: mother, home and homeland, lands and dwellings, conveyances, formal learning in several transmissions, and sukha — the inward contentment the texts place at the base of the heavens. It is a kendra, one of the four pillars Parāśara likens to the frame of the chart; grahas here act with the directness the angles confer.
Bandhu is weighed as every bhāva is weighed: by the condition of its lord, by who occupies it, and by what aspects fall upon it — the computed chart beside this passage carries those facts. The tradition also consults the kārakas, Moon for the mother and Venus for conveyances, before concluding anything. A supported fourth is read as rootedness; an afflicted one as unsettled ground beneath otherwise good fortune. Which applies is the chart's verdict, not the bhāva's.