Bhagavad Gita Chapter 3 Verse 39
भगवद् गीता अध्याय 3 श्लोक 39

आवृतं ज्ञानमेतेन ज्ञानिनो नित्यवैरिणा।
कामरूपेण कौन्तेय दुष्पूरेणानलेन च।।3.39।।



हिंदी अनुवाद - स्वामी रामसुख दास जी ( भगवद् गीता 3.39)
।।3.39।।और हे कुन्तीनन्दन इस अग्निके समान कभी तृप्त न होनेवाले और विवेकियोंके नित्य वैरी इस कामके द्वारा मनुष्यका विवेक ढका हुआ है।


English Translation of Sanskrit Commentary By Sri Shankaracharya's
3.39 Jnanam, Knowledge; is avrtam, covered; etena, by this; nityavairina, constant enemy; jnaninah, of the wise. For the wise person knows even earlier, I am being induced by this into evil. And he always [Both at the time when desire arises in him, and also when he is forced to act by it.] feels distressed. Therefore, it is the constant enemy of the wise but not of a fool. For the fool looks upon desire as a friend so long as hankering lasts. When sorrow comes as a conseence, he realizes, I have been driven into sorrow because of longings, but certainly not earlier. Therefore it is the constant enemy of the wise alone.
In what form? Kama-rupena, in the form of desire-tha which has wish itself as its expression is kama-rupa; in that form-; (and) duspurena, which is an insatiable; analena, fire. That which is difficult to satisfy is duspurah; and (derivatively) that which never has enough (alam) is analam.
Again, having what as its abode does desire, in the form of a viel over Knowledge, become the enemy of all? Since when the abode of an enemy is known, it is possible to easily slay the enemy, therefore the Lord says:


English Translation of Commentary  - Dr. S. Sankaranarayan
3.39 Avrtam etc.  Looks like a desired one :  For it acts when there is desire.  It is fire,  because it is like fire impossible to satiate.  For, it burns down both the visible and the invisible results  [of rightious actions].


English Translation of Ramanuja's Sanskrit Commentary
3.39 The knowledge, having the self for its subject, of this embodied person (the Jiva) whose nature is knowledge, is enveloped by this constant enemy in the shape of desire, which brings about attachment for sense-objects. This desire is difficult to satisfy, i.e., has for its object things unworthy of attainment and is insatiable, i.e., never attains satisfaction.

Now listen to what constitutes the instruments with which desire subdues the self. Sri Krsna goes on to expound this:


Transliteration Bhagavad Gita 3.39Aavritam jnaanam etena jnaanino nityavairinaa;
Kaamaroopena kaunteya dushpoorenaanalena cha.


Word Meanings Bhagavad Gita 3.39āvṛitam—covered; jñānam—knowledge; etena—by this; jñāninaḥ—of the wise; nitya-vairiṇā—by the perpetual enemy; kāma-rūpeṇa—in the form of desires; kaunteya—Arjun the son of Kunti; duṣhpūreṇa—insatiable; analena—like fire; cha—and