In Bhagavad-gita (9.11) the Lord clearly says, avajananti mam mudha manusim tanum asritam: Fools deride Me when I descend in a human form. Krsna appears on this earth or within this universe without any change in His spiritual body or spiritual qualities. Indeed, He is never influenced by the material qualities. He is always free from such qualities, but He appears to act under material influence. This understanding is aropita, or an imposition. Therefore Krsna says, janma karma ca me divyam: [Bg. 4.9] whatever He does, being always transcendental, has nothing to do with material qualities. Evam yo vetti tattvatah: only devotees can understand the truth of how He acts. The fact is that Krsna is never partial to anyone. He is always equal to everyone, but because of imperfect vision, influenced by material qualities, one imposes material qualities upon Krsna, and when one does so he becomes a mu-dha, a fool. When one can properly understand the truth, one becomes devoted and nirguna, free from material qualities. Simply by understanding the activities of Krsna one can become transcendental, and as soon as one is transcendental he is fit to be transferred to the transcendental world. Tyaktva deham punar janma naiti mam eti so rjuna: [Bg. 4.9] one who understands the activities of the Lord in truth is transferred to the spiritual world after he gives up his material body.