Agni Purana (Jyotisha Selections) · by Vyasa
Chapter 2 · War Astrology: Yogas, Nakshatras
युद्धजयार्णवः (योगाः नक्षत्राणि)
मिथुनं कन्यका मीनो धनुश्च द्विस्वभावकः ।द्विस्वभावाः शुभाश्चैते सर्वकार्येषु नित्यशः ॥ १७ ॥
In the full Agni Purana this is chapter 127, verse 17.
Gemini, Virgo, Pisces and Sagittarius are dual signs. These dual signs are always good, in all works.
Simple meaning: Gemini, Virgo, Sagittarius and Pisces are dual signs, good for all work.
यात्रावाणिज्यसङ्ग्रामे विवाहे राजदर्शने ।
In travel, trade, battle, marriage or meeting a king, one gets growth, victory and gain.
अश्विनी त्रिंशत्ताराश्च (रा च) तुरगस्याऽऽकृतिर्यथा ।
Ashvini's rain lasts a night, Bharani's rain lasts a fortnight.
कोटचक्रं प्रवक्ष्यामि चतुरस्रं पुरं लिखेत् ।
Draw a square fort, with a square inside it, and another inside that.