Upamanyu’s Tapas, Shiva’s Indra-Form Test, and the Bestowal of Kshiroda and Gaṇapatya
हिमवत्पर्वतं प्राप्य वायुभक्षः समाहितः तपसा तस्य विप्रस्य विधूपितमभूज्जगत्
himavatparvataṃ prāpya vāyubhakṣaḥ samāhitaḥ tapasā tasya viprasya vidhūpitamabhūjjagat
Al llegar al monte Himavat, aquel brahmán—alimentándose sólo de aire y con la mente plenamente recogida—realizó un tapas tal que, por la fuerza de su austeridad, el mundo entero fue sacudido y conmovido. En términos del Śaiva Siddhānta, el tapas concentrado hace temblar al jagat atado por pāśa, mientras sólo el verdadero Pati permanece inmóvil.
Suta Goswami (narrating to the sages of Naimisharanya)
It highlights that inner discipline (tapas and samādhi) is a core Shaiva means to approach Shiva; Linga worship is not only external ritual but also the yogic “heat” of focused consciousness offered to Pati.
By showing the world can be shaken by a jīva’s tapas, it indirectly points to Shiva as Pati—transcendent, steady, and sovereign—while the cosmos remains within change and agitation under pāśa.
Severe asceticism and breath-based restraint (vāyubhakṣa, prāṇa-sustenance) combined with mental one-pointedness (samāhita), aligning with Pāśupata-style tapas as a purifier of bondage.