अयुक्तः प्राकृतः स्तब्धः शठो नैष्कृतिकोऽलसः।
विषादी दीर्घसूत्री च कर्ता तामस उच्यते।।18.28।।
।।18.28।। अयुक्त? प्राकृत? स्तब्ध? शठ? नैष्कृतिक? आलसी? विषादी और दीर्घसूत्री कर्ता तामस कहा जाता है।।
One who is unqualified not having the requisite competence to perform prescribed Vedic activities. Who is prakritah or mundane and hence vulgar, vile and unrefined. Who is stabhah indolent, lethargic and unmotivated to engage in spiritual activities. Who is sathah or wicked having a predilection for evil and sorcery. Who is lazy, morose and deceitful. Who is dirgha-sutri rancorously insulting of others from envy and harbouring deep, dark vengeance against them. Such a one is unremittingly situated in tama guna the mode of passion.