Caitanya-caritāmṛta 9.126
tumi sākṣāt sei kṛṣṇa, jāna nija-karma yāre jānāha, sei jāne tomāra līlā-marma
[tumi saakshaat sei krishna, jaana nija-karma yaare jaanaaha, sei jaane tomaara leelaa-marma]
Blended reading (Sanskrit + English inline)
tumi sākṣāt sei kṛṣṇa, jāna nija-karma yāre jānāha, sei jāne tomāra līlā-marma
“You are the Supreme Personality of Godhead, Kṛṣṇa Himself. You know the purport of Your activities, and the person whom You enlighten can also understand Your pastimes.”
Purport
The Supreme Personality of Godhead Kṛṣṇa and His pastimes cannot be understood by blunt material senses. One has to purify the senses by rendering transcendental loving service unto the Lord. When the Lord is pleased and reveals Himself, one can understand the transcendental form, name, qualities and pastimes of the Lord. This is confirmed in the Kaṭha Upaniṣad (2.23) and Muṇḍaka Upaniṣad (3.2.3): yam evaiṣa vṛṇute tena labhyas tasyaiṣa ātmā vivṛṇute tanūṁ svām. “Anyone who is favored by the Supreme Personality of Godhead can understand His transcendental name, qualities, form and pastimes.”
— A.C. Bhaktivedanta Swami Prabhupāda
My note
Source: vedabase.io