The pada of the Tanu bhava is called the chief pada; that which arises from the lord of the twelfth from it is the Uparudha — the same is named Upapada or Gauguna Pada.
Verse 4 — Benefics on Upapada Give Full Spouse-Progeny Bliss
If malefics join or aspect it in a malefic sign, the native becomes an ascetic or is without spouse; with benefic aspect this yoga does not destroy marriage.
ravir naivātra pāpaḥ syāt svoccamitrasvabhasthitaḥ |
nīcaśatrugṛhasthaścettadā 'sau pāpa eva hi || 6||
Here even the Sun is not a malefic when placed in exaltation, a friend's sign, or own sign; but standing in debilitation or an enemy's sign he indeed acts as a malefic.