Śrīmad-Bhāgavatam · Text 4.8.77
Who is speaking and story frame
सर्वतो मन आकृष्य हृदि भूतेन्द्रियाशयम् ।
ध्यायन्भगवतो रूपं नाद्राक्षीत्किञ्चनापरम् ॥ ७७ ॥
sarvato mana ākṛṣya
hṛdi bhūtendriyāśayam
dhyāyan bhagavato rūpaṁ
nādrākṣīt kiñcanāparam
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.
Read Śrīla Prabhupāda's purport on Vedabase.io