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The Essence of the Tantra· 6.10 / 82

The Essence of the Tantra6.10

6.10

सपादम् अङ्गुलद्वयं तुटिः उच्यते तासु चतसृषु प्रहरः तुट्यर्धं तुट्यर्धं तत्र सन्ध्या एवं निर्गमे दिनं प्रवेशे रात्रिः इति तिथ्युदयः

Transliteration (IAST)

sapādam aṅguladvayaṃ tuṭiḥ ucyate tāsu catasṛṣu praharaḥ tuṭyardhaṃ tuṭyardhaṃ tatra sandhyā evaṃ nirgame dinaṃ praveśe rātriḥ iti tithyudayaḥ

— two finger-breadths plus a quarter ; — a tuṭi (a small instant) ; — in the four (of them) ; — a watch (a quarter of the day) ; — half a tuṭi ; — the twilight (juncture) ; — the day in exhalation ; — the night in inhalation

Two finger-breadths plus a quarter are called a tuṭi; in four of these there is a watch (prahara). Half a tuṭi at one end and half a tuṭi at the other are the twilight junctures there. In this way, in exhalation there is day, in inhalation night — such is the arising of the lunar day.