Bhagavad Gita 15.3
The tree's form and ends cannot be seen from within, and it must be cut with the sword of detachment.
न रूपमस्येह तथोपलभ्यते नान्तो न चादिर्न च संप्रतिष्ठा।
अश्वत्थमेनं सुविरूढमूलमसङ्गशस्त्रेण दृढेन छित्त्वा॥
na rūpamasyeha tathopalabhyate nānto na cādirna ca saṃpratiṣṭhā
aśvatthamenaṃ suvirūḍhamūlamasaṅgaśastreṇa dṛḍhena chittvā
Translation
Its true form cannot be grasped here, nor its end, its beginning or its foundation. Cut down this deeply rooted ashvattha with the strong sword of detachment.
Hindi
यहाँ इसका वास्तविक रूप नहीं दिखता, न इसका अंत, न आदि और न आधार। गहरी जड़ों वाले इस पीपल को असंगता की दृढ़ तलवार से काटकर आगे बढ़ो।
Commentary
Nobody standing inside the tree can see its whole shape, because its beginning and end lie beyond ordinary perception. The remedy is not argument but detachment, called here a sword (asanga). Shankara reads this as a firm turning away from worldly bonds, the same spirit that nishkama karma trains. 15.4 tells what to seek once the tree is cut.