He who is greatly under the influence of spiritual ignorance, who is foolish, senseless and given to (day) dreaming, who is idle, unenergetic, full of anger and haughtiness, is said to be under the influence of Tama.
अविद्याबहुलो मूढः स्वप्नशीलो विचेतनः। दुर्हषीकस्तमोध्वस्तः सक्रोधस्तामसोऽलसः॥