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## Translation:
**[Chapter on Unfavorable Times for Study]**
**445. Thunder and lightning are often due to the nature of the season. Therefore, from the constellation Prādrā to Svāti, it is not considered an unfavorable time for study.**
**5. Nirghāta - When there is a loud roar in the sky without clouds, or when there is thunder with clouds, it is an unfavorable time for study for two praharas.**
**6. Yūpaka - In the bright fortnight, the first, second, and third days, the meeting of the evening glow and the moonlight is called Yūpaka. On these days, one should not study from the evening until night.**
**7. Yakṣādīpta - When there is a light like lightning in a particular direction, which appears intermittently, it is called Yakṣādīpta. Therefore, one should not study as long as this light appears in the sky.**
**8. Dhūmikā - From the dark fortnight of Kārttika to Māgha, it is the time of the gestation of clouds. During this time, a fine, water-like mist of a smoky color falls. This is called Dhūmikā-Kṛṣṇa. One should not study as long as this mist falls.**
**9. Mihikāśveta - In winter, a fine, water-like mist of white color falls, which is called Mihikā. One should not study as long as this falls.**
**10. Raja-Udghāta - Due to the wind, dust spreads all over the sky. One should not study as long as this dust remains spread.**
**The above ten reasons are related to the sky and are unfavorable for study. The following ten reasons are related to the body and are unfavorable for study.**
**11-12-13. Bones, Flesh, and Blood - If the bones, flesh, and blood of a five-sensed animal are visible, it is an unfavorable time for study until these things are removed from there. The commentator considers it an unfavorable time for study if these things are present within 60 cubits around. Similarly, the bones, flesh, and blood of a human being are also considered unfavorable for study. The difference is that the unfavorable time for these is up to 100 cubits and for one day and night. The unfavorable time for a woman's menstrual period is three days. The unfavorable time for the birth of a boy and a girl is seven and eight days respectively.**
**14. Impure Excrement - It is an unfavorable time for study until the excrement is visible.**
**15. Cremation Ground - It is considered an unfavorable time for study within 100 cubits around a cremation ground.**
**16. Lunar Eclipse - During a lunar eclipse, one should not study for eight praharas for the lowest category, twelve praharas for the middle category, and sixteen praharas for the highest category.**
**17. Solar Eclipse - During a solar eclipse, it is also considered an unfavorable time for study for eight, twelve, and sixteen praharas respectively.**