Hayanaratna · by Balabhadra
Chapter 3 · The Sixteen Yogas
षोडशयोगाध्यायः
योगम्मुथशिलाख्यं यद्यधिकाररहितेन शीघ्रेण मुथशिलङ्कार्यकरन्तर्हिं अधिकारसहितेनाप्यवश्यङ्कार्यकरमिति जीर्णटीकाकृत् ॥
The 'yoga' in the verse is the one called ithasala (planets moving toward an exact aspect). Ithasala with a fast planet that is not in charge gets the work done. Then ithasala with a fast planet in charge surely gets it done too.
Simple meaning: Why duphalikuttha works: ithasala with a fast planet not in charge does the work. So with a fast planet in charge it surely does.
अत्रोदाहरणम् ॥
Duphalikuttha example, question about happiness: Mars in Aries at 12 and the Moon in Aquarius at 10 form ithasala. Happiness is gained.
प्रागशुभपश्चाच्छुभरद्दयोगः
Chart of radda, bad first and good later: Jupiter in sign 10 and Mars in sign 12, both at 10 degrees.
प्राक्छुभपश्चादशुभरद्दयोगः
Chart of radda, good first and bad later: Mars in sign 4 and Jupiter in sign 12, both at 10 degrees.