Chapter 2 · Verse 13
Krishna has just told Arjuna that grief over what cannot be killed is misplaced. Now he gives the first concrete argument: the self moves through bodies the way a person moves through childhood, youth, and old age.
dehino 'smin yathā dehe kaumāraṃ yauvanaṃ jarā | tathā dehāntara-prāptir dhīras tatra na muhyati ||
1.Plain meaning
Just as the embodied self moves through childhood, youth, and old age in this body, so too it moves into another body at death. A wise person is not confused or distressed by this.
2.Line by line
kaumāraṃ yauvanaṃ jarā
tathā dehāntara-prāptiḥ
dhīras tatra na muhyati
3.What is really happening
A.The argument from your own experience
Krishna does not start with scripture or metaphysics. He starts with something every person has already lived: the body you had at seven is gone. You adjusted. You did not collapse. He is using your own history as the proof. This is unusually grounded for what is often treated as mystical teaching.
B.The self as the constant across change
The verse quietly separates the dehin (the one who inhabits the body) from the deha (the body itself). This is not claimed; it is illustrated. The illustration is you, moving through your own life. The separation is something you can actually check against your own experience right now.
C.Why Arjuna's grief has the wrong object
Arjuna is grieving over what will happen to bodies on the battlefield. Krishna is not dismissing that grief; he is showing that it is aimed at the wrong thing. The bodies change anyway. They have always been changing. What Arjuna thinks he is protecting has already, in principle, been moving through its own transitions all along.
D.Clarity is the medicine, not suppression
The dhīra does not not-feel. The dhīra is not confused. This is a cognitive shift being offered, not an emotional shutdown. The spinning Arjuna is doing is not because he feels too much; it is because he is seeing through a distorted lens. The verse is essentially saying: look again.
4.Modern parallel
Person A looks at an old photograph of themselves at age twelve and feels a mild nostalgia, nothing more. They do not say: that child is dead and I should grieve. They understand intuitively that something continuous moved through that stage into this one. Person B, facing a major transition at work or in a relationship or in health, treats the ending of one form of their life as a kind of annihilation. They freeze, spin, cannot act. The same structure applies: something continuous is moving through a transition, but the misidentification with the particular form makes the change feel like destruction. Krishna is pointing Person B back to Person A's intuition, which they already carry but have forgotten to apply here.
→What comes next
Verse 2.14 moves from the philosophical argument about the self to the immediate, felt reality of pleasure and pain: Krishna tells Arjuna that contact with the senses produces heat and cold, happiness and misery, and that these are impermanent. The teaching shifts from who you are to how to hold what happens to you. When ready, say: "2.14"