Shloka 38
ध्यानयोगः — Dhyāna-Yoga
Discipline of Meditation and Mental Restraint
न हि ज्ञानेन सदृशं पवित्रमिह विद्यते । तत् स्वयं योगसंसिद्ध: कालेनात्मनि विन्दति,इस संसारमें ज्ञानके समान पवित्र करनेवाला निःसंदेह कुछ भी नहीं है। उस ज्ञानको कितने ही कालसे कर्मयोगके द्वारा शुद्धान्त:करण हुआ मनुष्य अपने- आप ही आत्मामें पा लेता है:
na hi jñānena sadṛśaṃ pavitram iha vidyate | tat svayaṃ yogasaṃsiddhaḥ kālenātmani vindati ||
于此世间，莫有胜于智慧之净化者。此智慧，时至自得；由瑜伽而臻圆满之人，终将在自我之中发现它。
अजुन उवाच
Educational Q&A
Knowledge (jñāna) is presented as the supreme purifier. When a person becomes mature through yoga—especially disciplined, selfless practice that refines the mind—this knowledge is not merely learned externally but is realized inwardly, in the Self, in due time.
In the midst of the battlefield instruction, the teaching turns to inner discipline: the speaker emphasizes that spiritual purity and clarity arise most powerfully from true knowledge, which dawns naturally within one who has steadily cultivated yogic maturity over time.