Shloka 15
कामद्रुम-रूपकः तथा शरीर-पुर-रूपकः
The Desire-Tree and the Body-as-City Metaphors
नवनीतं यथा दध्नः काष्ठादग्निर्यथैव च । तथैव विदुषां ज्ञानं पुत्र हेतो: समुद्धूतम्
navanītaṁ yathā dadhnaḥ kāṣṭhād agnir yathaiva ca | tathaiva viduṣāṁ jñānaṁ putra hetoḥ samuddhūtam || yad ūrdhva-pādatayor avāṅ-mūrdhnaś ca paśyati | etasminn eva kṛtye tu vartate buddhir uttamā ||
毗耶娑说：“吾子，正如由酪搅出酥油，由木摩出火焰，如是此解脱之教——能生真实之智——亦为学者由搅炼诸经而萃取。凡人于身中所认作‘我’者——自足底而上，自顶门而下——最高之慧（buddhi）正是在此作用中运转。身中之‘我’感，实则不过是慧之变相。”
व्यास उवाच
Educational Q&A
Liberating knowledge is not invented but extracted as an essence through disciplined inquiry—like butter from curd or fire from wood. The verse also points to a key psychological insight: the sense of ‘I’ tied to the body is a function (a modification) of buddhi, not the true Self; recognizing this supports detachment and the pursuit of mokṣa.
Vyāsa addresses his ‘son’ (the listener in the discourse) and justifies the mokṣa-śāstra he is presenting: it is distilled from the broader śāstric tradition. He then analyzes embodied self-perception, explaining that the intellect’s activity constructs the body-centered ‘I’-sense.