The Soul Never Dies
The real ‘you’ is not the body — it is eternal and deathless.
The knowing (Self) is not born, it dies not; it sprang from nothing, nothing sprang from it. The Ancient is unborn, eternal, everlasting; he is not killed, though the body is killed.
न जायते म्रियते वा कदाचि
न्नायं भूत्वा भविता वा न भूयः।
अजो नित्यः शाश्वतोऽयं पुराणो
न हन्यते हन्यमाने शरीरे।।2.20।।
na jāyate mriyate vā kadāchin nāyaṁ bhūtvā bhavitā vā na bhūyaḥ ajo nityaḥ śhāśhvato ’yaṁ purāṇo na hanyate hanyamāne śharīre
It is not born, nor does it ever die; after having been, it again does not cease to be; unborn, eternal, changeless, and ancient, it is not killed when the body is killed.
Common thread
What you truly are cannot die — it is a spark of the eternal.
Echo
The Katha Upanishad and Gita 2.20 are almost word-for-word identical — the Gita is literally quoting the older Vedic teaching.
📖 A story to understand
On the battlefield, Arjuna froze in grief at the thought of death all around him. Krishna lifted his sorrow: the soul is never slain — like changing worn-out clothes, it simply moves on. So mourn not for what cannot die.
Traditional sakhi / story (simplified retelling)