Srila Prabhupada - Vedic Teachings

  „When the pure soul wants to give up the Lord's service to enjoy the material world, Kṛṣṇa certainly gives him a chance to enter the material world. As stated in the Prema-vivarta: kṛṣṇa-bahirmukha hañā bhoga vāñchā kare. This is the reason the pure spirit soul falls down to the material world. Due to his activities under the influence of the three modes of material nature, the living entity takes different positions in different species. Sometimes he is a demigod in the heavenly planets and sometimes a most insignificant creature in the lower planetary systems.” (From SB 5.14 Summary) TRANSLATION Those who worship the demigods will take birth among the demigods; those who worship ghosts and spirits will take birth among such beings; those who worship ancestors go to the ancestors; and those who worship Me will live with Me. „If anyone has any desire to go to the moon, the sun, or any other planet, one can attain the desired destination by following specific Vedic principle...

  "You ask any learned scientist, professor, "Who are you?" He'll say, "I am Mr. John." He'll say, "I am Mr. John, I am American," or "I am Mexican," "I am Indian," like that. So this is ignorance. Nobody is this body. That is the first lesson of spiritual knowledge. So long we identify with this body, that "I am Mr. Such-and-such," "I am American," "I am Indian," this is all ignorance. When you actually understand that you are not this body—therefore you are not American, nor Indian nor Mexican, but you are spirit soul—then your spiritual education begins. And that is... In Sanskrit it is called ahaṁ brahmāsmi: "I am spirit soul." Spiritual... Spirit soul has no connection with this material world. When one understands fully this, I mean to say, fact, that spirit soul is different from this material world, then he's actually learned." (Lecture on BG 2.12 -- Mexico, February ...