Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 5 · Portents, Comets
ग्रहचारः केतवश्च
नागेभैरावताश्चैव वृषभोष्ट्रखराह्वयाः ।मृगाजदहनाख्याः स्युर्याम्यांता वीथयो नव ॥ ६६ ॥
In the full Narada Purana (Purva Bhaga) this is chapter 56, verse 66.
The nine lanes, ending with the southern one, are named Naga, Gaja, Airavata, Vrishabha, Ushtra, Khara, Mriga, Aja and Dahana.
Simple meaning: The nine lanes of Venus are named after the snake, elephant, bull, camel, donkey, deer, goat and fire.
सौम्यमार्गे च तिसृषु चरन्वीथिषु भार्गवः ।
Venus in the northern lanes tends to bring plenty of grain, wealth and rain.
मध्यमार्गे च तिसृषु सर्वमप्यधमं फलम् ।
Venus in the middle lanes gives poor results. Seen in the east in the Magha group, it brings good rain.
स्वातित्रये पश्चिमायां तस्यां शुक्रस्तथाविधः ।
Venus in the west in the Svati group also brings rain. The opposite brings drought; Mercury adds rain.