Shiva Purana — Vayaviya Samhita, Shloka 36
शिवशक्त्यैक्य-तत्त्वविचारः / Inquiry into the Unity of Śiva and Śakti
Para–Apara Ontology
शक्तिशक्तिमदुत्थं तु शाक्तं शैवमिदं जगत् । यथा न जायते पुत्रः पितरं मातरं विना
śaktiśaktimadutthaṃ tu śāktaṃ śaivamidaṃ jagat | yathā na jāyate putraḥ pitaraṃ mātaraṃ vinā
此宇宙由圣力（Śakti）与具圣力者（湿婆）而生，故同时既是“性力派”（Śākta），亦是“湿婆派”（Śaiva）。正如儿子不可能离开父与母而出生。
Suta Goswami
Tattva Level: pati
Shiva Form: Umāpati
Shakti Form: Umā
Role: creative
Cosmic Event: cosmic origination framed through the father-mother analogy (Śiva-Śakti as conjoint cause)
FAQs
It teaches that reality is grounded in the inseparable principle of Śiva (Pati, the Lord) and Śakti (His power), and that creation and liberation are understood correctly only when both are honored as one functioning truth.
Linga worship centers on Śiva as the supreme Lord, while acknowledging that His manifesting power is Śakti; thus devotion to the Linga is complete when one recognizes Śiva-with-Śakti as the source and support of the cosmos.
Contemplate Śiva-Śakti unity while japa of the Pañcākṣarī (Om Namaḥ Śivāya), mentally offering worship to Śiva as Pati and to His Śakti as the power enabling grace, purification, and inner awakening.