Shloka 17
Adhyāya 51: Kṛṣṇa’s Leave-Taking and Departure for Dvārakā (द्वारकागमनानुमति)
यददुरापं दुराम्नायं दुराधर्ष दुरन्वयम् | तत् सर्व तपसा साध्यं तपो हि दुरतिक्रमम्
yad adurāpaṁ durāmnāyaṁ durādharṣa duranvayam | tat sarvaṁ tapasā sādhyaṁ tapo hi duratikramam ||
ヴァーユは言った。「得ることがきわめて難しく、教えと修習によって会得するのも難しく、制御するのも難しく、また交わり同調することさえ難しい—そのような一切は、苦行（タパス）によって成就し得る。なぜなら、タパスの力（規律ある出離の努力）は、それ自体が打ち破りがたいからである。」
वायुदेव उवाच
Educational Q&A
Tapas—sustained, disciplined austerity—can accomplish even what seems impossible to obtain, learn, control, or maintain; its moral-spiritual force is portrayed as nearly irresistible.
Vāyudeva speaks a didactic maxim, emphasizing the efficacy of tapas as a means to overcome extreme difficulty, reinforcing an ethical ideal of self-mastery and disciplined effort.