Werset 18.3218.118.218.318.418.518.618.718.818.918.1018.1118.1218.1318.1418.1518.1618.1718.1818.1918.2018.2118.2218.2318.2418.2518.2618.2718.2818.2918.3018.3118.3218.3318.3418.3518.3618.3718.3818.3918.4018.4118.4218.4318.4418.4518.4618.4718.4818.4918.5018.5118.5218.5318.5418.5518.5618.5718.5818.5918.6018.6118.6218.6318.6418.6518.6618.6718.6818.6918.7018.7118.7218.7318.7418.7518.7618.7718.78

That, which, enveloped in darkness, sees Adharma as Dharma and all things perverted that intellect, O Arjuna, is Tamasic (dark).

The understanding which, covered by darkness, takes adharma to be dharma and sees all things in reverse, son of Pritha, is tamasic.

Tamasic understanding, covered by darkness, takes adharma to be dharma and sees everything in reverse. This is the most dangerous state, because wrong appears right and confusion feels like certainty. The verse explains how people can commit serious wrongs while believing themselves justified. In the context of the war, it recalls the conduct of those who had wronged the Pandavas while claiming legitimacy. The threefold picture of understanding is now complete.