Text 46]
The Birth of Lord Kṛṣṇa
265
Mahārāja, the Lord personally instructed them that they should always think of Him as their son and as the Supreme Personality of Godhead. That would keep them in touch with Him. After eleven years, the Lord would return to Mathurā to be their son, and therefore there was no question of separation.
TEXT 46
श्रीशुक उवाच
इत्युक्त्वासीद्धरिस्तूष्णीं भगवानात्ममायया ।
पित्रोः सम्पश्यतोः सद्यो बभूव प्राकृतः शिशुः ॥४६॥
śrī-śuka uvāca 
    ity uktvāsīd dharis tūṣṇīm 
    bhagavān ātma-māyayā 
    pitroḥ sampaśyatoḥ sadyo 
    babhūva prākṛtaḥ śiśuḥ
śrī-śukaḥ uvāca—Śrī Śukadeva Gosvāmī said;  iti uktvā —after instructing in this way;  āsīt —remained;  hariḥ —the Supreme Personality of Godhead;  tūṣṇīm —silent;  bhagavān —Lord Viṣṇu, the Supreme Personality of Godhead;  ātma-māyayā —by acting in His own spiritual energy;  pitroḥ sampaśyatoḥ —while His father and mother were factually seeing Him;  sadyaḥ —immediately;  babhūva —He became;  prākṛtaḥ —like an ordinary human being;  śiśuḥ —a child.
TRANSLATION
Śukadeva Gosvāmī said: After thus instructing His father and mother, the Supreme Personality of Godhead, Kṛṣṇa, remained silent. In their presence, by His internal energy, He then transformed Himself into a small human child. [In other words, He transformed Himself into His original form: kṛṣṇas tu bhagavān svayam.]
PURPORT
As stated in  Bhagavad-gītā  (4.6),  sambhavāmy ātma-māyayā : whatever is done by the Supreme Personality of Godhead is done by His spiritual energy; nothing is forced upon Him by the material energy. This is