“…one should concentrate his mind upon Kṛṣṇa-the very form with two hands carrying a flute, the bluish boy with a beautiful face and peacock feathers in His hair. There are descriptions of Kṛṣṇa found in the Brahma-saṁhitā and other literatures. One should fix his mind on this original form of Godhead, Kṛṣṇa. He should not even divert his attention to other forms of the Lord. The Lord has multi-forms, as Viṣṇu, Nārāyaṇa, Rāma, Varāha, etc., but a devotee should concentrate his mind on the form that was present before Arjuna. Concentration of the mind on the form of Kṛṣṇa constitutes the most confidential part of knowledge, and this is disclosed to Arjuna because Arjuna is the most dear friend of Kṛṣṇa’s.”
Bhagavad-gita As It Is – Macmillan 1972 Edition
By His Divine Grace A.C. Bhaktivedanta Swami Prabhupada
Chapter 18, Text 65
man-manā bhava mad-bhakto
mad-yājī māṁ namaskuru
mām evaiṣyasi satyaṁ te
pratijāne priyo ‘si me
man-manāḥ—thinking of Me; bhava—just become; mat-bhaktaḥ—My devotee; mat-yājī—My worshiper; mām—unto Me; namaskuru—offer your obeisances; mām—unto Me; eva—certainly; eṣyasi—come; satyam—truly; te—to you; pratijāne—I promise; prijaḥ—dear; asi—you are; me—My.
Always think of Me and become My devotee. Worship Me and offer your homage unto Me. Thus you will come to Me without fail. I promise you this because you are My very dear friend.
The Hare Krishna Movement 