Jyotiṣa-śāstra Saṅgraha: Threefold Division, Gaṇita Methods, Muhūrta, and Planetary Reckoning
स्वाधोधः प्रविशोध्याथ मेषाल्लंकोदयासवः । स्वागाष्टयोर्थगोगैकाः शरत्र्येकं हिमांशवः ॥ १४६ ॥
svādhodhaḥ praviśodhyātha meṣāllaṃkodayāsavaḥ | svāgāṣṭayorthagogaikāḥ śaratryekaṃ himāṃśavaḥ || 146 ||
দক্ষিণ পথে প্রবেশ করে, মেষে সূর্যোদয় থেকে আরম্ভ করে লঙ্কা-উদয় মান গণনা করা হয়। তাতে দক্ষিণায়নের অন্তর্গত আট মাস; এক মাস শরৎঋতুর; এবং এক মাস শীতঋতুর (হিমাংশু-সম্বন্ধীয়) বলে স্মৃত।
Sanatkumara (in dialogue with Narada)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: adbhuta
It links dharma-practice to correct kāla (time): knowing ayana (solar course) and seasonal divisions helps align vows, worship, and observances with auspicious timing.
By emphasizing proper time-reckoning, it supports disciplined devotional observances (vratas, pūjā timings) performed with awareness of cosmic order, which steadies bhakti through niyama (regulated practice).
Vedāṅga Jyotiṣa: the verse indicates reckoning months/seasons with reference to Meṣa (Aries) and the Sun’s course (ayana), a technical basis for calendrical and ritual scheduling.