Bhagavad Gita Chapter 18 Verse 35
भगवद् गीता अध्याय 18 श्लोक 35

यया स्वप्नं भयं शोकं विषादं मदमेव च।
न विमुञ्चति दुर्मेधा धृतिः सा पार्थ तामसी।।18.35।।



हिंदी अनुवाद - स्वामी रामसुख दास जी ( भगवद् गीता 18.35)
।।18.35।।हे पार्थ दुष्ट बुद्धिवाला मनुष्य जिस धृतिके द्वारा निद्रा? भय? चिन्ता? दुःख और घमण्डको भी नहीं छोड़ता? वह धृति तामसी है।


Shri Vaishnava Sampradaya - Commentary

The  word  svapnam  means  slumber  inferring  slothfulness.  Madam  is  the
delusion of enjoying sense objects. The dharmedah or unintelligent fools  do
not oppose their mind from allowing their senses to buffet then  hither  and
thither  in  pursuit  of  sense  gratification.  They  even  sanction   such
treatment to satisfy their desires. The terms  bhayam  or  dread,  sokam  or
grief and nisadam or dejection are the by  products  of  this  delusion  and
those who occupy their time and energy  and  waste  their  invaluable  human
life as such Lord Krishna confirms are indispensably situated in tama  guna.