Bhagavad Gita 15.11 Chapter 15, Verse 11

यतन्तो योगिनश्चैनं पश्यन्त्यात्मन्यवस्थितम् ।
यतन्तोऽप्यकृतात्मानो नैनं पश्यन्त्यचेतसः ॥१५.११॥

yatanto yoginaścainaṃ paśyantyātmanyavasthitam
yatanto'pyakṛtātmāno nainaṃ paśyantyacetasaḥ

Meaning

Striving yogis see it established within themselves; but the undisciplined and unaware do not see it, even when they strive.

Newly written by Bhajan Dhun — scholarly review in progress.

Reference: Bhagavad Gita 15.11 (Chapter 15, The Yoga of the Supreme Person (Purushottama Yoga), Verse 11)