Bhagavad Gita Chapter 2 Verse 66
भगवद् गीता अध्याय 2 श्लोक 66

नास्ति बुद्धिरयुक्तस्य न चायुक्तस्य भावना।
न चाभावयतः शान्तिरशान्तस्य कुतः सुखम्।।2.66।।



हिंदी अनुवाद - स्वामी रामसुख दास जी ( भगवद् गीता 2.66)
।।2.66।।जिसके मनइन्द्रियाँ संयमित नहीं हैं ऐसे मनुष्यकी व्यवसायात्मिका बुद्धि नहीं होती। व्यवसायात्मिका बुद्धि न होनेसे उसमें कर्तव्यपरायणताकी भावना नहीं होती। ऐसी भावना न होनेसे उसको शान्ति नहीं मिलती। फिर शान्तिरहित मनुष्यको सुख कैसे मिल सकता है


Rudra Vaishnava Sampradaya - Commentary

Lord Krishna now reveals the  controlling  of  the  senses  as  a  means  of
attaining spiritual intelligence in a converse way.  The  Lord  states  that
one with an uncontrolled mind can never possess spiritual intelligence  even
if well versed in the Vedic scriptures and the teachings  of  the  bona-fide
preceptor in the line  of  Vedic disciplic succession in  one  of  the  four
authorised  Vaisnava  sampradayas.  Why  is  this  true?  Because  with  an
uncontrolled mind  it  is  not  possible  to  have  spiritual  intelligence,
without spiritual intelligence one cannot meditate  and  without  meditation
it is not possible to  realise  the  Ultimate  Truth.  So  one  who  has  an
uncontrolled mind is bereft of this, for one who  cannot  meditate,  who  is
unable to enlighten themselves within there is no peace and where  there  is
no peace how can there be happiness.


Brahma Vaishnava Sampradaya - Commentary

Lord Krishna is explaining the defects due to the absence  of  happiness  as
referred to in this verse. Without being happy there is  no  possibility  of
concentration of the mind. Without concentration of the mind  there  can  be
no meditation and without meditation  it  is  not  possible  to  have  inner
awakening or soul-cognition. Therefore  it  has  been  declared  that  these
things are not possible for  one  without  concentration.  Santih  or  peace
refers also to liberation. Santi, moksa or liberation and  nirvana all  have
a similar meaning denoting termination of the samsara or worldly existence.


Shri Vaishnava Sampradaya - Commentary

One who is unable to concentrate and focus their mind in meditation on  Lord
Krishna is known  as  ayukta  devoid  of  spiritual  intelligence.  One  who
attempts to control their senses by their own efforts without  securing  the
grace of the Supreme Lord merited by devotion. To these living  entities  no
clear, definitive illumination in consciousness can develop; ergo ,  because
one will not be able to internally  realise  the  ultimate  reality  of  the
Supreme Lord through the medium of the eternal soul as  having  name,  form,
qualities, pastimes, abode  and  sweetness.   Thus  without  being  able  to
comprehend and contemplate on the nature of the eternal soul  there  can  be
no tranquillity. Nor is it  possible  to  dispel  the  compulsive  urge  and
inclination to experience sensual objects. To those who  are  not  tranquil,
who are  addicted  to  sensual  objects  and  who  are  submerged  in  sense
gratification; how can they ever possibly  attain  eternal  blessedness  and
transcendental  bliss.  Again  as  stated  previously  are   the  disastrous
consequences that result in the inability to govern the tempestuous senses.


Kumara Vaishnava Sampradaya - Commentary
One who is unable to concentrate and focus their mind in meditation on  Lord
Krishna is known  as  ayukta  devoid  of  spiritual  intelligence.  One  who
attempts to control their senses by their own efforts without  securing  the
grace of the Supreme Lord merited by devotion. To these living  entities  no
clear, definitive illumination in consciousness can develop; ergo ,  because
one will not be able to internally  realise  the  ultimate  reality  of  the
Supreme Lord through the medium of the eternal soul as  having  name,  form,
qualities, pastimes, abode  and  sweetness.   Thus  without  being  able  to
comprehend and contemplate on the nature of the eternal soul  there  can  be
no tranquillity. Nor is it  possible  to  dispel  the  compulsive  urge  and
inclination to experience sensual objects. To those who  are  not  tranquil,
who are  addicted  to  sensual  objects  and  who  are  submerged  in  sense
gratification; how can they ever possibly  attain  eternal  blessedness  and
transcendental  bliss.  Again  as  stated  previously  are   the  disastrous
consequences that result in the inability to govern the tempestuous senses.