Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 8 · Marriage
विवाहः
दंपत्योर्जन्मभे चैकगणे प्रीतिरनेकधा ।मध्यमा देवमर्त्यानां राक्षसानां तयोर्मृतिः ॥ ५०२ ॥
In the full Narada Purana (Purva Bhaga) this is chapter 56, verse 502.
If the couple's birth stars are in the same gana (temper group), there is love in many ways. For god and human it is middling. For demons, the lives of the two may be at risk.
Simple meaning: Same group means much love. God and human is middling. A demon with another group may put life at risk.
मृत्युः षष्ठाष्टके पंचनवमे त्वनपत्यता ।
A 6-8 count may risk life, 5-9 may bring no children, 2-12 poverty. Other counts give the best love.
एकाधिपे मित्रभावे शुभदं पाणिपीडनम् ।
Same or friendly sign lords make 2-12 and 5-9 good. A 6-8 count is never good.
अश्वेभमेषसर्पाहिह्योतुमेषोतुमूषकाः ।
This verse lists the animals of the stars from Ashvini to Jyeshtha, starting with horse and elephant.