Bhagavad Gita 2.23 · Krishna
No weapon can cut it
नैनं छिन्दन्ति शस्त्राणि नैनं दहति पावकः।
न चैनं क्लेदयन्त्यापो न शोषयति मारुतः॥
nainaṃ chindanti śastrāṇi nainaṃ dahati pāvakaḥna cainaṃ kledayantyāpo na śoṣayati mārutaḥ
Weapons cannot cut it. Fire cannot burn it. Water cannot wet it. Wind cannot dry it.
What it means
Krishna names the four great forces of the world. Weapons, fire, water and wind. None of them can touch the Self. It can't be cut, burned, soaked or dried out. He's not describing the body, which all of these can harm. He's describing what you are beneath it.
The story
Arjuna is standing among weapons, with fire arrows and storms of battle soon to come. Krishna names every danger on that field, then says none of it can reach the Self. It's a reassurance as concrete as the threat.
In your life
Maybe you know someone who lost their home in a flood and later said, the water took everything except who we are. When life strips things away, name what's still yours. Kindness. Courage. Love. No storm takes those.
No storm reaches who you really are.