Chapter 13 · The Field and the Knower · Krishna said
Bhagavad Gita 13.33 — Like the sky, unstained
यथा सर्वगतं सौक्ष्म्यादाकाशं नोपलिप्यते। सर्वत्रावस्थितो देहे तथात्मा नोपलिप्यते ॥
yathā sarvagataṃ saukṣmyādākāśaṃ nopalipyate | sarvatrāvasthito dehe tathātmā nopalipyate ||
Meaning
Just as the all-pervading sky, being so subtle, is not stained by anything, so the Self present everywhere in the body is never stained.
In today's life
Like the sky that stays clear above passing clouds, your true Self stays untouched by passing troubles.