सप्तद्वीप-सप्तसमुद्र-वर्णनम् तथा प्रियव्रतवंश-राज्यविभागः
कुशलदेशः कुशले मनुगस्य मनोनुगः उष्णस्योष्णः स्मृतो देशः पीवरः पीवरस्य च
kuśaladeśaḥ kuśale manugasya manonugaḥ uṣṇasyoṣṇaḥ smṛto deśaḥ pīvaraḥ pīvarasya ca
The land of Kuśala is said to suit one who is wholesome; for Manuga it is agreeable and aligned with his intent. For one of hot nature, a hot land is prescribed; likewise, for the robust, the robust land—Pīvara—is held to be fitting.
Suta Goswami (narrating Linga Purana teachings to the sages of Naimisharanya, summarizing dharmic suitability of regions)
It frames Shiva-sadhana as context-sensitive: the practitioner (pashu) should choose a suitable region and lifestyle so the worship, vows, and purity disciplines can be sustained without aggravating bodily and mental conditions.
Indirectly, it points to Shiva as Pati who governs order (dharma) through appropriate means: liberation is not random but supported by right conditions—place, conduct, and inner disposition—so the soul can loosen pasha (bondage) through steady practice.
Kshetra-viveka (discernment of place) for vrata, puja, and Pashupata-oriented discipline—choosing an environment that matches one’s constitution to maintain tapas, purity, and continuity of worship.