He completely controlled his senses and their objects, and in this way he fixed his mind, without diversion to anything else, upon the form of the Supreme Personality of Godhead.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
सर्वतो मन आकृष्य हृदि भूतेन्द्रियाशयम् । ध्यायन् भगवतो रूपं नाद्राक्षीत्किञ्चनापरम्
sarvato mana ākṛṣya hṛdi bhūtendriyāśayam | dhyāyan bhagavato rūpaṃ nādrākṣītkiñcanāparam
SB 4.8.77