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।


Rudra Vaishnava Sampradaya - Commentary


Now the inimical nature of kama or lust is being made even more explicit  by
Lord Krishna.
It is the discriminative faculty of knowledge that is covered  by  kama.  To
the ignorant while   enjoying sense objects kama  itself  is  the  cause  of
pleasure; but the subsequent reaction  will  be   inimical.  To  the  person
situated  in  Vedic  wisdom  who  understands  that  they  will  receive   a
subsequent reaction, then kama is a cause  of  pain  even  while  trying  to
enjoy. Therefore kama is understood to be an eternal  enemy.  Moreover  even
if supplied with delightful sense objects of enjoyment it  is  never  enough
because kama is insatiable and when  it  is  not  satisfied  kama  turns  to
krodha or anger and that leads to grief and affliction just  like  a  forest
fire burning everything in its path. So from these  statements  its  eternal
inimical nature towards all beings has been declared.


Brahma Vaishnava Sampradaya - Commentary


One on the path of jnana yoga knows from the Vedic scriptures that moksa  or
liberation from the cycle of birth  and  death  can  never  manifest  itself
until first attaining atma-tattva or soul  realisation.  When  such  is  the
case for  persons  of  wisdom  what  can  be  said  for  persons  of  meagre
intelligence.  The  word  kama-rupena  means  in  the  form  of  lust.  This
indicates that only with great pain and difficulty is lust  ever  fulfilled.
The word duspurena means never satisfied. This indicates that kama  or  lust
is an eternal adversary. Even the position of Indra in the  heavenly  realms
is born of this kama that is to be the king of all the celestials; yet  even
while trying to achieve the position of Indra, the  position  of  Brahma  is
sought because kama is never satisfied and it is  more  exalted  to  be  the
ruler of the material worlds then the king of the celestials  and  so  forth
and so on. The word analena means like a  fire  which  denotes  the  burning
fire of kama which is never satisfied  and  insatiable.   It  is  said  that
kama covers the atma as smoke covers fire, As dust prevents one from  seeing
a reflection in the mirror this kama  prevents  one  from  perceiving  their
atma and as the womb imprisons the embryo it is kama which  keeps  a  person
imprisoned in the material existence. This is Lord Krishnas meaning.


Shri Vaishnava Sampradaya - Commentary


The intellect of one who even has  understanding  of  atma  tattva  or  soul
realisation becomes clouded by the eternal enemy known as kama or  lust  and
which generates fascination and excitement for enjoying the objects  of  the
senses. The word duspurena means insatiable, it can never be  satisfied.  It
constantly hungers for sense gratification even if  it  is  inaccessible  to
get and impossible to have  still  kama  yearns  for  it.  It  is  anala  or
inexhaustible as nothing ever completely satisfies  kama  permanently.  When
the object of its desires has been acquired  and the senses fully  gratified
then at once kama wants more and  looks  for  something  new.  It  is  never
satisfied. In what way kama utilises itself to envelope  the  atma  or  soul
Lord Krishna reveals next.


Kumara Vaishnava Sampradaya - Commentary
The intellect of one who even has  understanding  of  atma  tattva  or  soul
realisation becomes clouded by the eternal enemy known as kama or  lust  and
which generates fascination and excitement for enjoying the objects  of  the
senses. The word duspurena means insatiable, it can never be  satisfied.  It
constantly hungers for sense gratification even if  it  is  inaccessible  to
get and impossible to have  still  kama  yearns  for  it.  It  is  anala  or
inexhaustible as nothing ever completely satisfies  kama  permanently.  When
the object of its desires has been acquired  and the senses fully  gratified
then at once kama wants more and  looks  for  something  new.  It  is  never
satisfied. In what way kama utilises itself to envelope  the  atma  or  soul
Lord Krishna reveals next.