Although they are thus afflicted with misery, they consider themselves to be (very) happy and comfortable; and consequently their bonds (of Karma) are not loosened and new Karma thus again arises.
अजस्रमेव दुःखार्तोऽदुःखितः सुखसंज्ञितः। ततोऽनिवृत्तबन्धत्वात् कर्मणामुदयादपि॥