There are some who are demonic; they also think of Kṛṣṇa, but enviously, just like King Kaṁsa, Kṛṣṇa’s uncle. He was also thinking of Kṛṣṇa always, but he thought of Kṛṣṇa as his enemy. He was always in anxiety, wondering when Kṛṣṇa would come to kill him. That kind of thinking will not help us. One should be thinking of Kṛṣṇa in devotional love.
One should therefore engage his mind in the eternal form, the primal form of Kṛṣṇa; with conviction in his heart that Kṛṣṇa is the Supreme Personality of Godhead and that His body is not material, but is eternal, blissful knowledge. This will help one transfer into the Kṛṣṇaloka.
Bhagavad-gita As It Is – Macmillan 1972 Edition
By His Divine Grace A.C. Bhaktivedanta Swami Prabhupada
Chapter 9, Text 34
man-manā bhava mad-bhakto
mad-yājī māṁ namaskuru
mām evaiṣyasi yuktvaivam
ātmānaṁ mat-parāyaṇaḥ
mat-manāḥ—always thinking of Me; bhava—become; mat—My; bhaktaḥ—devotee; mat—My; yājī—worshiper; mām—unto Me; namaskuru—offer obeisances; mām—unto Me; eva—completely; eṣyasi—come; yuktvā evam—being absorbed; ātmānam—your soul; mat-parāyaṇaḥ—devoted to Me.
Engage your mind always in thinking of Me, offer obeisances and worship Me. Being completely absorbed in Me, surely you will come to Me.
Purport
In this verse it is clearly indicated that Kṛṣṇa consciousness is the only means of being delivered from the clutches of this contaminated material world. Sometimes unscrupulous commentators distort the meaning of what is clearly stated here: that all devotional service should be offered to the Supreme Personality of Godhead, Kṛṣṇa. Unfortunately, unscrupulous commentators divert the mind of the reader to that which is not at all feasible. Such commentators do not know that there is no difference between Kṛṣṇa’s mind and Kṛṣṇa. Kṛṣṇa is not an ordinary human being; He is Absolute Truth. His body, mind and He Himself are one and absolute. It is stated in the Kūrma Purāṇa. As it is quoted by Bhaktisiddhānta Sarasvatī Gosvāmī in his Anubhāṣya comments on Caitanya-caritāmrta, Fifth Chapter, Ādi-līlā, verses 41-48, “deha-dehi-vibhedo ‘yaṁ neśvare vidyate kvacit,” which means that there is no difference in Kṛṣṇa, the Supreme Lord, between Himself and His body. But, because they do not know this science of Kṛṣṇa, the commentators hide Kṛṣṇa and divide His personality from His mind or from His body. Although this is sheer ignorance of the science of Kṛṣṇa, some men make profit out of misleading the people.
The Hare Krishna Movement 