Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 3 · Dashas, Yogas, Placements
जातकम् २
श्रेष्ठं शुभतरं वाच्यं विपरीतगतस्य तु ।नेष्टमुत्कटमिष्टं तु स्वल्पं ज्ञात्वा बलं वदेत् ॥ १४८ ॥
In the full Narada Purana (Purva Bhaga) this is chapter 55, verse 148.
Call that result the best and very good. For a planet placed the other way, the bad is strong and the good is small. Know the strength first, then speak.
Simple meaning: Well-placed planets give the best results. Badly placed ones bring much bad and little good.
चरे सन्मध्यदुष्टाभ्यामंगभंगे विपर्ययात् ।
The result depends on which third of the rising sign it is and whether the sign moves, stays fixed or is dual.
स्वामीज्यज्ञयुता होरा दृष्टा वा सत्फलावहा ।
A rising sign with its lord, Jupiter or Mercury gives good results. Bad planets on both sides spoil it.
प्राग्ध्वांक्षा बंधुमृत्याय तयोर्द्यूने रविः स्वभात् ।
This lists the houses where the Sun gets points, counted from itself, Mars, Saturn and Venus.