Narada Purana — Purva Bhaga, Shloka 156
Graha–Ketu–Utpāta Lakṣaṇas: Solar/Lunar Omens, Comets, Eclipses, and Calendar Rules
क्षणसंज्ञास्तदर्द्धानि तासामर्द्धप्रमाणतः । रविः स्थिश्चरश्चन्द्र ः क्रूरोवक्रोखिलो बुधः ॥ १५६ ॥
kṣaṇasaṃjñāstadarddhāni tāsāmarddhapramāṇataḥ | raviḥ sthiścaraścandra ḥ krūrovakrokhilo budhaḥ || 156 ||
这些时间分段的一半称为“刹那”(kṣaṇa)；依其半分的尺度而说：太阳安住不移，月亮运行不息；而布陀星（Mercury，水星）性势峻厉，常现逆行，行度亦多不齐。
Sanatkumara (in dialogue with Narada)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: adbhuta
FAQs
It links dharmic life to right discernment of kāla (time): knowing time-units and graha-behavior supports wise timing of actions, while ultimately pointing the seeker toward steadiness beyond changing celestial influences.
By implying that even when planets are ‘harsh’ or ‘irregular,’ the devotee should remain steady like the Sun—using knowledge of time for discipline, while resting faith in the higher order upheld by dharma and devotion.
Jyotiṣa Vedāṅga: definitions of fine time-units (kṣaṇa and halves) and applied observation of graha nature—Sun as steady, Moon as moving, and Mercury noted for vakratva (retrograde/irregular motion).