Jyotiṣa-saṅgraha: Varga-vibhāga, Bala-nirṇaya, Garbha-phala, Āyuḥ-gaṇanā
निशींदुकुजसौराश्च सर्वदा क्षोह्नि चापरे । क्रूराः कृष्णे सिते सौम्याः मतं कालबलं बुधैः ॥ ३० ॥
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रात्रि, चंद्र, मंगळ आणि शनि हे सदैव क्रूर मानले जातात; काही इतरही क्षोभ झाल्यास क्रूर होतात. कृष्णपक्षात ते तीव्र, शुक्लपक्षात सौम्य—असे कालबलाबाबत पंडितांचे मत आहे।
Sanatkumara (teaching Narada in the Moksha Dharma context)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: bhayanaka
It teaches that spiritual and ritual actions should respect kāla (time) and its strength, since timing—especially lunar fortnight dynamics—affects the ease or intensity (saumya/krūra) of outcomes.
While not directly prescribing bhakti, it supports devotional practice by advising wise timing for vrata, japa, and worship—reducing obstacles by aligning sādhana with favorable kāla-bala.
Jyotiṣa (Vedāṅga astrology): assessment of kāla-bala through pakṣa (dark/bright fortnight) and the functional nature of grahas like Chandra, Mangala, and Shani for selecting auspicious periods.