Markandeya Purana — Adhyaya 40, Shloka 25
Adhyaya 40 — The Yogin’s Impediments (Upasargas), Subtle Concentrations, and the Eight Siddhis
एतान्येव तु सन्धान्य सप्त सूक्ष्माणि पार्थिव ।
भूतादीनां विरागोऽत्र सद्भावज्ञस्य मुक्तये ॥
etāny eva tu sandhāya sapta sūkṣmāṇi pārthiva /
bhūtādīnāṃ virāgo 'tra sadbhāvajñasya muktaye
大王啊，若将心专注安住于这七种微细原理之上，便会对诸元素及其相关因素生起离贪；对了知真实（sadbhāva）者而言，此即导向解脱。
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FAQs
Right meditation is not for refined enjoyment but for disenchantment with the entire field of experience. Knowledge of reality (sadbhāva) is validated by the growth of virāga, culminating in freedom.
Didactic yoga-ācāra material; it supports the Purāṇa’s broader dharma teaching but is not itself one of the five defining topics.
‘Seven subtle principles’ likely indicate a graded inner map used for laya: the practitioner uses subtle contemplations to dissolve identification with bhūtas/tanmātras, reversing outward cognition into its source.