asocyänanvasocastvam prajnavadämsca bhasase
gatasunagatasumsca nanusocanti panditah
The Blessed Lord said:-
Arjuna, you grieve for those who should not be grieved at, yet speak as if a man of wisdom. The wise grieve, neither for the living, nor for the dead. 11
[A man is grieved when he classifies objects and persons, into two divisions—One's own, and not one's own, such as, our kinsmen and not our kinsmen, of our caste and not of our caste, of our stage of life and not of our stage of life, our followers and not our followers. We have a sense of mine, attachment, love and desire for those, who we regard as ours. Through these—a sense of mine and desire etc., faults such as grief, worry, fear, perturbation, commotion and strain etc., arise. The root of all faults, is a sense of nine and desire etc., this is a rule.
At me beginning of the Oita, Dhrtarastra asked, "What did my sons and the sons of Pandu do?" It shows his partiality towards his own sons and attachment for them, though the Pandavas, regarded him more than their father.
Arjuna also developed the same attachment, but he had no partiality, he was impartial and so he uses the terms 'Seeing all these relations' (1/28) and 'How can we, by killing our own kinsmen, be happy' (1/37). It means that, Adana had attachment for the Kum family, and because of possibility of destruction of the family, he was grieved. To remove this grief, Lord Krsna preaches the gospel of the Gita, which begins with this eleventh verse. In the end, Lord Krsna declares that there is no justification for Him, to grieve and he should take refuge in Him, alone, and not grieve—'Grieve not' (18/66). The reason is, that dependence on the world leads to grief, while supreme or exclusive devotion to the Lord, leads to the state which.is free from faults such as grief and worry etc.]
Asocyananvasocastvam:-There are two things in the world—real and unreal, the soul and the body. Both of these are not to be grieved at as the real is imperishable, and therefore, should not be grieved for and the unreal, is bound to perish, as it is perishing every moment, so it should not be grieved at.