Tamasic Firmness.
यया स्वप्नं भयं शोकं विषादं मदमेव च ।
न विमुञ्चति दुर्मेधा धृतिः सा पार्थ तामसी ॥ ३५ ॥
yayā svapnaṃ bhayaṃ śokaṃ viṣādaṃ madameva ca .
na vimuñcati durmedhā dhṛtiḥ sā pārtha tāmasī .. 35 ..
That with which a stupid man does not give up sleep, fear, grief, depression and lust, that firmness, O Pārtha, is Tamasic.
Read the commentary
The stupid man holds sensual gratification in high esteem and never gives up lasciviousness. He regards sleep, etc., as things that ought always to be resorted to.
Pleasure is threefold according to gunas.
The threefold division of actions and of the several factors (karakas) concerned in action, has been described. Here follows the threefold division of pleasure which is the effect of actions.