Purport by Srila Prabhupada
Material Compassion for the eternal soul is self-realization
Material compassion, lamentation and tears are all signs of ignorance of the real self. Compassion for the eternal soul is self-realization. The word “Madhusudana” is significant in this verse.
Lord Krsna killed the demon Madhu, and now Arjuna wanted Krsna to kill the demon of misunderstanding that had overtaken him in the discharge of his duty. No one knows where compassion should be applied. Compassion for the dress of a drowning man is senseless.
A man fallen in the ocean of nescience cannot be saved simply by rescuing his outward dress – the gross material body. One who does not know this and laments for the outward dress is called a sudra, or one who laments unnecessarily. Arjuna was a ksatriya, and this conduct was not expected from him.
Lord Krsna, however, can dissipate the lamentation of the ignorant man, and for this purpose the Bhagavad-gita was sung by Him. This chapter instructs us in self-realization by an analytical study of the material body and the spirit soul, as explained by the supreme authority, Lord Sri Krsna. This realization is possible when one works without attachment to fruitive results and is situated in the fixed conception of the real self.
Also see: https://vedabase.io/en/library/bg/2/2/
Bhagavad Gita 2.2
śrī-bhagavān uvāca
kutas tvā kaśmalam idaṁ
viṣame samupasthitam
anārya-juṣṭam asvargyam
akīrti-karam arjuna
The Supreme Personality of Godhead said: My dear Arjuna, how have these impurities come upon you? They are not at all befitting a man who knows the value of life. They lead not to higher planets but to infamy.
Hare Krishna🙏
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