2--23, 24, 25 Sankhya Yoga (सांख्य योग) 23rd, 24th & 25th verses

 नैनं छिन्दन्ति शस्त्राणि नैनं दहति पावक: |

न चैनं क्लेदयन्त्यापो न शोषयति मारुत: ||(2-23)||

nainaṁ chhindanti śhastrāṇi nainaṁ dahati pāvakaḥ
na chainaṁ kledayantyāpo na śhoṣhayati mārutaḥ

Word to Word Meaning: enam = this soul; śhastrāṇi = weapons; na = not; chhindanti = shred; pāvakaḥ = fire;   enam = this soul; na = nor; dahati = burns;  āpaḥ = water;  cha = and; na = not; enam = this soul; kledayanti = inundate, submerge; mārutaḥ = wind; na = nor; śhoṣhayati = dry; 

Literal Meaning: No weapons can pierce the soul, fire can’t burn it. Neither Water can drench, nor the air can wither it.

 

अच्छेद्योऽयमदाह्योऽयमक्लेद्योऽशोष्य एव च |
नित्य: सर्वगत: स्थाणुरचलोऽयं सनातन: ||(2-24)||

achchhedyo ’yam adāhyo ’yam akledyo ’śhoṣhya eva cha
nityaḥ sarva-gataḥ sthāṇur achalo ’yaṁ sanātanaḥ

Word to Word Meaning: ayam = this soul; achchhedyaḥ = unbreakable; ayam = this soul; adāhyaḥ = incombustible;  akledyaḥ = cannot be dampened; aśhoṣhyaḥ = cannot be dried; cha = and;  ayam = this soul; eva = indeed; nityaḥ = everlasting; sarva-gataḥ = all-pervading; sthāṇuḥ = unalterable; achalaḥ = immutable;  sanātanaḥ  = primordial

Literal Meaning: The soul is not punctured, nor burned, nor dampened, nor parched. Soul is all-pervading, constant, immovable, eternal.

 

अव्यक्तोऽयमचिन्त्योऽयमविकार्योऽयमुच्यते |
तस्मादेवं विदित्वैनं नानुशोचितुमर्हसि ||(2-25)||

avyakto ’yam achintyo ’yam avikāryo ’yam uchyate
tasmādevaṁ viditvainaṁ nānuśhochitum arhasi

Word to Word Meaning: ayam = this soul;  avyaktaḥ = unmanifested (imperceptible to senses); ayam = this soul; achintyaḥ = inconceivable by the mind; ayam = this soul; avikāryaḥ = unchangeable; (iti = thus); uchyate = is declared; tasmāt = therefore; enam = this soul; evam = thus; viditvā = having known;   anuśhochitum = to grieve; na = not; arhasi = befitting

Literal Meaning: This soul is said to be imperceptible to the senses, inconceivable by the mind, and unalterable. Therefore, knowing this, you should not grieve for the body.

Commentary: As stated above it is impossible to have the first-hand knowledge of soul.  But there are many who claim to know it. You can judge their claims.  Let's leave this matter here and move on to understand Bhagavad Gita.