Narada Purana — Purva Bhaga, Shloka 58
The Characteristics of Devotion to Hari
मन एव मनुष्याणां कारणं बन्धमोक्षयोः । तस्मात्तदभिसंयोज्य परात्मनि सुखी भवेत् ॥ ५८ ॥
mana eva manuṣyāṇāṃ kāraṇaṃ bandhamokṣayoḥ | tasmāttadabhisaṃyojya parātmani sukhī bhavet || 58 ||
人の束縛と解脱の原因は、ただ心のみである。ゆえにその心を至上我（パラマートマン）に結び合わせれば、安楽を得る。
Sanatkumara (teaching Narada in a moksha-oriented discourse)
Vrata: none
Primary Rasa: shanta (peace)
Secondary Rasa: adbhuta (wonder)
FAQs
It identifies the mind as the decisive instrument: when the mind clings to objects it creates bondage, and when it is aligned with the Supreme Self it becomes the means of liberation and lasting peace.
Though stated in yogic language, it supports bhakti by implying that the mind must be steadily joined to the Supreme (commonly realized as Vishnu/Narayana in Purāṇic practice); such focused remembrance and surrender transforms inner agitation into happiness.
No specific Vedanga (like Vyākaraṇa or Jyotiṣa) is taught here; the practical takeaway is yogic discipline—training attention and intention so the mind remains joined to the Parātman.