Kālajñāna (Knowledge of Time) and Mṛtyu-cihna (Signs of Death): Śiva’s Instruction to Umā
प्राणः सप्तदशे चैव विद्धि वर्षं न संशयः । सप्तमासान्विजानीयाद्दिनैः षड्भिर्न संशयः
prāṇaḥ saptadaśe caiva viddhi varṣaṃ na saṃśayaḥ | saptamāsānvijānīyāddinaiḥ ṣaḍbhirna saṃśayaḥ
Know without doubt that the seventeen prāṇas are to be understood as one year. Likewise, know without doubt that seven months are to be reckoned as six days.
Suta Goswami (narrating the teaching tradition of the Umāsaṃhitā to the sages of Naimiṣāraṇya)
Tattva Level: pasha
It links prāṇa (vital force) with kāla (time), implying that inner mastery of prāṇa refines one’s experience of time—an important Shaiva-yogic principle where discipline of life-force supports steadiness of mind and progress toward Śiva-realization (Pati-jñāna).
While not describing a specific Linga-ritual, it supports the yogic foundation behind Saguna Śiva worship: regulated prāṇa and time-awareness stabilize attention, making japa, dhyāna, and pūjā to the Linga more concentrated and fruitful in devotion and inner purification.
A practical takeaway is prāṇāyāma and disciplined japa (especially Panchākṣarī—Om Namaḥ Śivāya) with mindful time-keeping; such regulation is traditionally paired with Shaiva sādhana like Tripuṇḍra (bhasma) and rudrākṣa to support steadiness and purity.