Sanskrit

यथा सर्वगतं सौक्ष्म्यादाकाशं नोपलिप्यते।सर्वत्रावस्थितो देहे तथाऽऽत्मा नोपलिप्यते।।13.33।।

Summary

As space, though present everywhere, remains unaffected due to its subtlety, so too the Self, though present in all forms, retains its purity unalloyed.