Bhagavad Gita 15.11
यतन्तो योगिनश्चैनं पश्यन्त्यात्मन्यवस्थितम्।यतन्तोऽप्यकृतात्मानो नैनं पश्यन्त्यचेतसः॥
yatanto yoginaścainaṃ paśyantyātmanyavasthitam |yatanto'pyakṛtātmāno nainaṃ paśyantyacetasaḥ ||
The yogis striving for perfection behold Him dwelling in the Self; but, the unrefined and unintelligent, even though striving, do not see Him.
The saints, with great effort, find Him within themselves; however, the unintelligent, despite their efforts, cannot control their minds.
Our plain-language meaning of this verse is waiting for scholar review.