thiṛambiṛṛu – For those individuals who believed that they could achieve liberation through their own efforts, such efforts have not borne fruit.
ini aṛindhēn – I now understand.
thennaraṅgatthu endhai – kaṇṇabirān (Kṛṣṇa) instructed Arjuna in the Śrī Bhagavad Gītā 18-66, "mām ekaṁ śaraṇam vraja" (surrender solely unto Me). He declared, "Abandon all insentient