Śivasaṃhitā 1.92

The Tantric cosmogony in its most concise expression: all beings are born from the union of Śiva and Śakti. There is no creation without both principles. Śiva alone is pure consciousness without movement; Śakti alone is potency without illumination. The union of both—consciousness and energy, void and dynamism—is the matrix of everything that exists. The yogi’s body is a living expression of that primordial union.

Svarūpatvena (through own nature, by intrinsic form) indicates that things are not named arbitrarily but according to their essential nature. The self-combination (svayam—by itself, spontaneously) of bindu (the point, Śiva) and rajas (energy, Śakti) produces ubhayormilanāt (from the union of both) all beings. This cosmogony is also physiological: bindu and rajas are the masculine and feminine vital fluids in the Tantric tradition.

The doctrine of creation through the union of Śiva and Śakti is the heart of non-dual Śaiva Tantrism. Unlike Sāṃkhya, which posits two eternal and irreducible principles (puruṣa and prakṛti), Śaiva Tantrism asserts that Śiva and Śakti are one: the distinction is apparent, arising from the Absolute’s own creativity. The Śivasaṃhitā inherits this vision and transmits it as the foundation of sacred sexual practice and energetic yoga.