Bhagavad Gita Chapter 4 Verse 38
भगवद् गीता अध्याय 4 श्लोक 38

न हि ज्ञानेन सदृशं पवित्रमिह विद्यते।
तत्स्वयं योगसंसिद्धः कालेनात्मनि विन्दति।।4.38।।



हिंदी अनुवाद - स्वामी रामसुख दास जी ( भगवद् गीता 4.38)
।।4.38।।इस मनुष्यलोकमें ज्ञानके समान पवित्र करनेवाला दूसरा कोई साधन नहीं है। जिसका योग भलीभाँति सिद्ध हो गया है वह (कर्मयोगी) उस तत्त्वज्ञानको अवश्य ही स्वयं अपनेआपमें पा लेता है।


Rudra Vaishnava Sampradaya - Commentary

The reason for this conclusion is being given by Lord Krishna and that is
amongst all penances and austerities and various types of yagnas or
offerings of worship there is  indeed nothing so purifying that compares
with spiritual knowledge. If this is so then why is not everyone striving
for the attainment of atma tattva or soul realisation. This will be
answered in the next verse. Spiritual knowledge manifests automatically
without effort after continuous practice of karma yoga or the following of
prescribed Vedic activities has been perfected and not before will one
become qualified.


Brahma Vaishnava Sampradaya - Commentary

Lord Krishna praises the value of spiritual wisdom in this verse and the
next two. In this process what is the role of the Supreme Lord? Is He
simply monitoring every activity from His position as paramatma or the
supersoul within all living entities. To the contrary, it is the Supreme
Lord who illuminates the consciousness of the living entities over and over
again and gives them the opportunity to learn about the ultimate truth.


Shri Vaishnava Sampradaya - Commentary

As in this world and all over the material creation there is nothing more
purifying and sanctifying then the spiritual knowledge of atma tattva or
soul realisation it is the destructive of all sin. Perfecting oneself by
the easy practice of karma yoga or the following of prescribed Vedic
activities in the manner instructed by the self-realised spiritual master
one will naturally attain atma tattva as well in due course of time.


Kumara Vaishnava Sampradaya - Commentary
As in this world and all over the material creation there is nothing more
purifying and sanctifying then the spiritual knowledge of atma tattva or
soul realisation it is the destructive of all sin. Perfecting oneself by
the easy practice of karma yoga or the following of prescribed Vedic
activities in the manner instructed by the self-realised spiritual master
one will naturally attain atma tattva as well in due course of time.