Lord Brahmā said: O Personality of Godhead, You are situated in every living entity’s heart as the supreme director, and therefore You are aware of all endeavors by Your superior intelligence, without any hindrance whatsoever.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
तथापि नाथमानस्य नाथ नाथय नाथितम् । परावरे यथा रूपे जानीयां ते त्वरूपिणः
tathāpi nāthamānasya nātha nāthaya nāthitam | parāvare yathā rūpe jānīyāṃ te tvarūpiṇaḥ
SB 2.9.25