Śivasaṃhitā 3.54

The spontaneous equilibrium of the three doṣas — kapha (phlegm), pitta (bile), anila/vāta (wind) — in the sādhaka’s body is the physiological correlate of perfect health. Āyurveda defines health not as absence of symptoms but as the state of dynamic equilibrium between the three constitutive forces. Advanced prāṇāyāma produces this equilibrium not as a side effect but as a central result.

The siddhis emerging from sustained practice include: vāksiddhi (prophecy, true word), kāmacāritva (movement at will), dūradṛṣṭi (distant vision, clairvoyance), dūraśruti (distant hearing, clairaudience), sūkṣmadṛṣṭi (vision of the subtle), parakāyapraveśana (entry into another’s body). Each of these powers corresponds to the extension of a sense beyond its habitual physical limitations.

The transmutation of metals through bodily excretions — gold produced by the advanced yogin’s urine and feces — is one of the most disconcerting affirmations for the modern reader. In Śaiva alchemy (rasaśāstra), the bodily fluids of the advanced yogin contain concentrations of ojas possessing real transformative properties over matter. The text enumerates this without special emphasis, as if it were as natural as distant vision.