Bhagavad Gita 15.11
यतन्तो योगिनश्चैनं पश्यन्त्यात्मन्यवस्थितम्।यतन्तोऽप्यकृतात्मानो नैनं पश्यन्त्यचेतसः।।15.11।।
Yatanto yoginashchainam pashyantyatmanyavasthitam, yatantopyakritatmano nainam pashyantyachetasah
Simple meaning, written by AIStriving yogis see it established within the self, but those who are unrefined and unthinking do not see it even while striving.