Wisdom can guide from multiple perspectives.

In this verse, Krishna takes an interesting philosophical turn. Having argued from the perspective of the eternal soul (ātman), He now presents the alternative materialist view — even if Arjuna were to believe that the soul is born and dies with the body, grief would still be irrational. If birth and death are inevitable and recurring, then sorrow over what cannot be prevented is a waste of vital energy.

This represents Krishna's pedagogical brilliance: He is not dogmatically insisting on a single metaphysical framework. Whether one accepts the Vedantic view of an eternal ātman or the materialist view of a temporary self, the logical conclusion is the same — grief is unwarranted and action is required. The verse dismantles the very intellectual foundation of Arjuna's paralysis.

Practically, this teaches us that we often use philosophical uncertainty as an excuse for inaction. Modern individuals may doubt concepts like the eternal soul, but that doubt itself provides no justification for shirking duty. Whether or not there is life after death, whether or not consciousness survives the body, the demands of the present moment — the duties, relationships, and responsibilities of this life — remain real and pressing. Act now, regardless of metaphysical uncertainty.