उमामहेश्वरव्रतं—पञ्चाक्षरमन्त्रस्य माहात्म्यं, न्यासः, जपविधिः, सदाचारः, विनियोगः
संध्यातिक्रमणाद्विप्रो ब्राह्मण्यात्पतते यतः असत्यं न वदेत् किंचिन् न सत्यं च परित्यजेत्
saṃdhyātikramaṇādvipro brāhmaṇyātpatate yataḥ asatyaṃ na vadet kiṃcin na satyaṃ ca parityajet
সন্ধ্যা-কর্ম অতিক্ৰম কৰিলে দ্বিজ ব্রাহ্মণ্যৰ পৰা পতিত হয়; সেয়ে সি অলপো অসত্য নক’ব, আৰু সত্যাচৰণ কেতিয়াও ত্যাগ নকৰিব।
Suta Goswami
It establishes ethical and daily-ritual purity—especially Sandhyā observance and truthfulness—as foundational qualifications for Shiva-upāsanā, making the devotee fit for steadiness in Linga-pūjā.
Implicitly, it presents Shiva as Pati who responds to inner purity: when the pashu reduces pasha through satya and nitya-karma, the ground is prepared for Śiva’s anugraha (grace).
Sandhyā-vandana (daily twilight worship) is highlighted as essential nitya-karma, paired with satya as a disciplined vow that supports purification and spiritual fitness for Shaiva practice.