न्यासवर्णनम् (Nyāsa-varṇanam) — Description of Nyāsa in the Saṃnyāsa Procedure
अकारो बीजमाख्यातमुकारः शक्तिरुच्यते । मकारः कीलकं प्रोक्तं मोक्षार्थे विनियुज्यते
akāro bījamākhyātamukāraḥ śaktirucyate | makāraḥ kīlakaṃ proktaṃ mokṣārthe viniyujyate
The syllable ‘A’ is declared to be the seed (bīja); the syllable ‘U’ is said to be the power (śakti). The syllable ‘M’ is taught as the pin or seal (kīlaka). These are to be employed for the sake of liberation (mokṣa).
Lord Shiva (teaching in the Kailāsa-saṃhitā discourse)
Tattva Level: pati
Shiva Form: Sadāśiva
Mantra: A-U-M (praṇava) with bīja-śakti-kīlaka mapping: akāra=bīja, ukāra=śakti, makāra=kīlaka.
Type: gayatri
Shakti Form: Umā
Role: liberating
It explains the inner structure of sacred sound used in Shaiva practice: the mantra has a seed (bīja), an activating power (śakti), and a stabilizing seal (kīlaka), and when applied correctly it becomes a direct means toward mokṣa under Shiva’s grace.
In Linga-worship and Saguna-upāsanā, sound (mantra) and form (liṅga) work together: the bīja-śakti-kīlaka framework indicates how japa energizes devotion and concentrates awareness on Shiva as Pati, making external worship mature into internal realization.
It suggests disciplined mantra-japa of Oṃ (A-U-M) with proper ‘vinayoga’—holding the seed, invoking its śakti, and sealing it with kīlaka—done with steadiness (dhyāna), ideally alongside Shaiva observances such as bhasma (tripuṇḍra) and focused worship of Shiva.