|Chapter 2: Contents of the Gita Summarized|
dehi nityam avadhyo 'yam
dehe sarvasya bharata
tasmat sarvani bhutani
na tvam socitum arhasi
O descendant of Bharata, he who dwells in the body can never be slain. Therefore you need not grieve for any living being.
Krishna as the best of communicators, concludes with a succinct summary of the section of sankhya. Srila Prabhupada comments, "The Lord now concludes the chapter of instruction on the immutable spirit soul. In describing the immortal soul in various ways, Lord Krishna establishes that the soul is immortal and the body is temporary."
In the second half of the verse Krishna instructs Arjuna to act on the platform of knowledge, since proper knowledge leads to proper action.
Once again the point needs to be made that the knowledge of the soul does not make the person callous, stoic or inconsiderate of the bodily considerations. Quite the contrary, one who is in knowledge of the soul, understands the proper relationship of the body and the soul and acts in this knowledge and such activities are always for the general welfare. They are always pleasing, compassionate and glorious.
In the next set of verses (2.31-2.38) Krishna instructs Arjuna to fight based on the platform of fruitive activity and religious duty. This is based on "karma-kanda," which states that by performing prescribed activities one achieves pleasures. Krishna thus explains to Arjuna that it is fighting and not running away from the fields that will lead to enjoyment.
Please read the Sanskrit Verse and the Prabhupada's Purport.