Mangalacharana — Salutation to Lord Hari of Madhyatavi
दुग्धसिन्धुकन्याधवं मध्याटव्याधिपं हरिम् ।
बुद्धिवृद्धिसिद्धीनां सिद्धये समुपास्महे ॥ १ ॥
We sincerely worship Lord Hari (Vishnu), the consort of the daughter of the milky ocean (Goddess Lakshmi) and the presiding deity of Madhyatavi (Edakad), for the attainment of sharp intellect (Buddhi), expansion of knowledge (Vriddhi), and supreme accomplishment (Siddhi).
The Three Skandhas of Jyotisha as the Eye of the Vedas
सिद्धान्तसंहिताहोराभेदात् स्कन्धत्रयात्मकम् ।
वेदस्य निर्मलं चक्षुर्ज्योतिःशास्त्रमनुत्तमम् ॥ ५ ॥
The supreme and flawless science of Jyotisha, celebrated as the pure eye of the personified Vedas, is three-branched (Skandhatrayatmakam): Siddhanta (astronomy and mathematics), Samhita (mundane astrology, natural phenomena and omens), and Hora (natal and horary predictive astrology).
Qualifications & Virtues of an Authentic Daivajna
अधीतशास्त्रो गणितप्रगल्भः सत्यप्रियः शान्तमना विनीतः ।
मन्त्रक्रियाविच्छुचिरस्तगर्वो दैवज्ञशब्दं लभते मनुष्यः ॥ १५ ॥
He who has thoroughly mastered the sacred treatises, is brilliant in astronomical calculations, dedicated to truth, endowed with a serene mind, humble, proficient in sacred mantras and rituals, inwardly and outwardly pure, and entirely free from arrogance—only such a person is worthy of the exalted title of 'Daivajna' (seer-astrologer).